Integrating Federal Statistics on Children: Report of a Workshop (1995)

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Workshop Papers 



Child Development in the Context of Family and Community Resources: An Agenda for National Data Collections Jeanne Brooks-Gunn, Brett Brown, Greg J. Duncan, and Kristin Anderson Moore INTRODUCTION The last decade has witnessed a remarkable transformation in social science data and research on child and adolescent development. Coming from quite different starting points, child development researchers, sociolo- gists, and economists have converged in their needs for rich, multilevel data based on large samples. Beginning from an interest in socioeconomic at- tainment, sociologists and economists have produced a burgeoning litera- ture on the factors that foster and undermine attainment; they now find themselves needing to delve deeper into the processes labeled socioeco- nomic status to understand how individual characteristics and family pro- cesses interact with community influences to produce socioeconomic attain- ment. Developmentalists have a tradition of conducting rich and detailed studies using small samples to examine in depth the processes by which children’s characteristics interact with parental socialization practices dur- ing childhood. This approach has produced a voluminous literature that now seeks to test its theories and findings with data based on larger, more representative samples. This intersection of interests from the fields of Jeanne Brooks-Gunn is at the Center for the Study of Children and Families, Teachers College, Columbia University. Brett Brown and Kristin Anderson Moore are at Child Trends, Inc., Washington, D.C. Greg J. Duncan is at the Center for Urban Affairs and Policy Re- search, Northwestern University. 27 

28 INTEGRATING FEDERAL STATISTICS ON CHILDREN child development, sociology, and economics places great demands on ex- isting data systems (Brooks-Gunn et al., 1991; Duncan, 1991; Cherlin, 1991). Despite an almost exclusive concentration on problem behaviors and a paucity of theoretical models that evaluate the full set of factors that influ- ence children’s development (Bronfenbrenner, 1979), the evolving litera- ture is demonstrating that individual, family, neighborhood, and school variables all contribute to children’s development (Brooks-Gunn et al., 1993a; Rosenbaum and Popkin, 1991; Alexander et al., 1993; Furstinberg et al., 1987; Rutter, 1985; Maccoby and Martin, 1983; Eccles, 1983; Sigel, 1985; Werner and Smith, 1982; Moore et al., 1994; Duncan et al., 1994a). However, findings on the relative importance of these domains in determining varied outcomes await both better data and further research. Common to most of this research is the predominant use of large na- tional datasets compiled by federal agencies or by survey organizations funded by federal agencies. Some of these datasets, such as High School and Beyond and the National Educational Longitudinal Surveys, were de- signed explicitly by the National Center for Educational Statistics (NCES) for analyses of adolescent outcomes and transitions to adulthood. Others, such as the Child Supplements to the National Longitudinal Surveys of Youth, are based on question modules added to datasets conceived prima- rily for other (in this case, labor market) purposes. Researchers working with still other datasets, such as decennial census microdata files with matched family- and neighborhood-level data, have been able to conduct valuable research on adolescent behavior by exploiting existing information that has been organized into a more useful form. Stimulated by the increasingly widespread and complex nature of social problems involving children and adolescents (National Commission on Children, 1991; Hernandez, 1993), federal efforts to initiate or supplement data col- lection activities appear to be increasing. This is reflected in plans in the Survey of Income and Program Participation for a new supplemental mod- ule on family processes and developmental outcomes, NCES’s initiation of a large cohort study of 5-year-olds, and consideration by the National Cen- ter for Health Statistics of a 1996 Child and Family Health Survey as part of the National Health Interview Survey. In this paper we suggest specific national data collection projects that could improve research on child and adolescent development.1 Our explicit aim is to encourage continued expansion of both the outcome domains cov- ered and the explanatory variables measured, to enhance the richness and quality of the data obtained, and to improve the representativeness of the samples that are drawn. These improvements would serve both the policy and academic research communities in their efforts to specify and estimate causal models of child, adolescent, and young adult behavior. To this end, we begin with developmental theory and summarize key 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 29 elements of an emerging “resource” framework, which we believe provides an integrative framework for understanding how child and adolescent devel- opment is affected by the time, money, and emotional resources of parents; by the institutions and “social capital” present in communities and neigh- borhoods; and by government policies that shape the context within which parental choices are made. Next we explain and provide empirical examples of key elements of datasets that have proved especially useful in testing and drawing policy conclusions from the theoretical framework we advocate. Some of the elements we list consist of the outcomes, resources, and family processes identified by theory as important. Others are important methods for imple- menting and estimating child development models. Many of the illustra- tions are based on results from smaller-scale studies; all have implications for the data collection improvements we outline in this paper. As we detail in the sections that follow, when assessing outcomes, a number of features are critical: • High-quality, longitudinal assessments of child outcomes, obtained from the child as well as the parent and, when necessary, by trained profes- sionals who test the child directly, and assessing how the factors that affect children influence development over periods of a decade or more; • Measurement of age-appropriate outcomes and transitions; and • Outcomes measured across multiple domains of functioning. Also, as we discuss, measurement of resources needs to attend to the fol- lowing: • High-quality, longitudinal measurement of family resources, that is, obtaining measures of a broad range of economic and social resources peri- odically over the years when a child or adolescent is growing up; • Measures of time “inputs,” including the amount of time, the activi- ties engaged in, and the persons present and interacting with a child; • Measurement of family-process mediators, such as communication patterns, disciplinary style, and teaching style; • Multiple levels of measurement, including the child, the family, the school, the community, the neighborhood, and the state; • Measurement of school conditions, such as school organization and the socioeconomic composition of the school; • Exact measurement of intrafamily relationships; and • Measurement of extended-family relationships, including relationships with grandparents, aunts, and uncles. Methodological and sampling considerations are also important, including: 

30 INTEGRATING FEDERAL STATISTICS ON CHILDREN • “Natural experiment” methods of model testing; • Leverage for policy analyses provided by state-to-state variation in program benefits and structure; • Oversamples of minority groups; • Multiple informants; and • Procedures to minimize and adjust for attrition in longitudinal sur- veys. We next review the content of 12 existing national data collections in light of our list of desirable design features of developmental modeling, including: (1) Consumer Expenditure Surveys; (2) Decennial census; (3) High School and Beyond; (4) National Crime Victimization Survey; (5) National Educational Longitudinal Survey of 1988; (6) National Health Interview Survey (NHIS) — Child Health Supplement 1988; (7) National Longitudinal Survey of Youth (1979 Cohort); (8) NLSY Child-Mother Data; (9) National Survey of Families and Households; (10) Panel Study of Income Dynamics; (11) National Survey of Children; and (12) Survey of Income and Program Participation. Table 1 lists salient characteristics of each survey, including measures of family resources and processes, measures of the extrafamilial context (e.g., neighborhood, school, peer group, county, and state), special advan- tages and disadvantages, sample size, and periodicity. Table 2 summarizes available child outcome measures for each survey by age group. Our theoretical discussion and empirical illustrations lead us directly to a set of suggested improvements, involving both incremental and more sub- stantial investments in federal datasets that would enhance their value for research on child and adolescent development. In some cases, the sugges- tions involve minor and quite inexpensive changes that would produce large analytic benefits. In others, more expensive changes could open up invalu- able analytic opportunities. We conclude with ideas for an even more expensive undertaking, a new longitudinal survey of children, outlining key design elements of such a survey. 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 31 FAMILY AND COMMUNITY RESOURCES AND CHILDREN’S DEVELOPMENT OVER TIME Many different frameworks have been used to study how children de- velop and the factors that influence development during childhood, adoles- cence, and the early stages of adult life. Such frameworks include: family systems approaches, risk and resilience, family and extra-family ecology, the life course, and economic decision making. Almost all of them con- sider, at least in passing, the ecology in which development occurs (con- text), as well as the stage or phase of life in which an individual is placed (time). However, these frameworks differ markedly in their relative empha- ses on time and context. Moreover, they also differ in how they examine the individual moving through time and context. Increasing interest in interdisciplinary research has focused attention on the value of different frameworks as well as the importance of looking at multiple mechanisms underlying development in any one study (Brooks-Gunn, in press; Brooks- Gunn et al., 1991; Duncan, 1991; Cherlin, 1991). A number of investigative teams now combine scholars of macro issues (economists, sociologists, and demographers) and scholars concerned with more micro-oriented issues (developmental and clinical psychologists, pe- diatricians). Examples of such endeavors include Cherlin et al. (1991), Duncan et al. (1994a), Baydar and Brooks-Gunn (1991), Baydar et al. (1993), and Desai et al. (1989). The National Institute of Child Health and Human Development (NICHD) has recently initiated a Family and Child Well- Being Research Network, comprised of seven researchers and their col- leagues; the seven teams in the NICHD network represent all six disciplines mentioned above. Discipline-focused perspectives can be integrated into a framework based on familial and extrafamilial resources. The model we employ borrows heavily from the work of Coleman on social capital theory (1988) as well as the recent work by Haveman and Wolfe on choice-investment theory (1994). However, it departs from these two efforts in making more explicit the links with disciplines that focus on familial and extrafamilial processes, e.g., systems theory, ecological theory, and psychological-resource or social-support theory. Resources Like Haveman and Wolfe (1994), we view “resources” very broadly, defining them as consisting of the money, time, interpersonal connections, and institutions that parents and communities may use to promote the devel- opment of children. Resources actually spent on promoting child and ado- lescent development are considered “investments” since, independent of 

32 INTEGRATING FEDERAL STATISTICS ON CHILDREN TABLE 1 Review of Federal Survey Contents and Characteristics Family Material Family Contextual Survey Resources Process Data Panel Study of income spend neighhd Income Dynamics source marhist zip (PSID) welfare biopar county hlthins state assets move tenure month year multi National income time school Longitudinal source biopar county Survey of Youth welfare state (NLSY) hlthins peer assets move tenure month year National income ppcnflct county Longitudinal source commun state Survey of Youth— welfare marhist move Child-Mother hlthins biopar Data (NLSY-CM) assets tenure month year National income time neighhd Educational assets activty school Longitudinal multi rules Survey of 1988 commun (NELS88) spend National Survey income time neighhd of Children (NSC) source activty school welfare ppcnflct zip tenure pccnflct state multi soccap peers rules move commun violnce marhist deprsn biopar 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 33 Survey Characteristics Special Special Sample Advantages Problems Size Periodicity sibs foster 4,800 Annual, since black institut households 1968 Latino in 1968; 7,900 absparent households in exact 1993 tract sibs nopar 12,686 in 1979 Annual, since black 1979 Latino child exact cheval sibs follow 6,503 children 1986, 88, 90, black foster in 1992 92, 94, Latino institut (biennial) exact unrep cheval Latino foster 24,599 in 1988; 1988, 90, 92, Asian 21,188 in 1992 94, 98 child teach exact sibs institut 2,301 in 1976; 1976, 1981, black 1,147 in 1987 1987 child abspar teach exact cheval 

34 INTEGRATING FEDERAL STATISTICS ON CHILDREN TABLE 1 Continued Family Material Family Contextual Survey Resources Process Data Survey of Income income marhist state and Program source biopar move Participation welfare (SIPP) hlthins assets National Survey income time county of Families and source activty move Households welfare ppcnflct (NSFH) assets pccnflct tenure soccap multi rules commun violnce marhist deprsn biopar High School income commun school and Beyond source spend peer (HS&B) welfare assets tenure multi Consumer income spend Expenditure source Surveys welfare (CEX) hlthins assets tenure National Crime income violnce move Victimization hlthins Survey (NCVS) tenure year Decennial Census, income county Public Use Micro- source state Sample (5%) welfare move tenure 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 35 Survey Characteristics Special Special Sample Advantages Problems Size Periodicity bothpar follow 20,000 households Every 4 absparent institut in 1993 months for exact 30 months sibs sib institut 13,017 households 1987-1988, black in 1987-1988; 1992-1993 Latino 7,926 children child bothpar absparent exact sib foster 58,270 in 1980; 1980, 82, 84 black nopar 24,354 in 1986 86; 1992 Latino (small sub- teach sample) cheval foster 5,000 households Every quarter institut for 5 quarters sib follow 47,600 households Every 6 child foster in 1990; 9,400 months for bothpar institut children (age 12+) 36 months immig in 1990 sib 15 million in 1990 Decennial (cross-sectional) 

36 INTEGRATING FEDERAL STATISTICS ON CHILDREN TABLE 1 Continued Family Material Family Contextual Survey Resources Process Data National Health income marhist move Interview Survey welfare — Child Health hlthins Supplement Family Material Resources income: summary measures of family income source: sources of family income are identified welfare: welfare receipt hlthins: health insurance coverage assets: family assets tenure: whether rent or own home month: income data reported on a monthly basis year: income data reported on a yearly basis multi: income data reported every few years Family Process time: amount of time spent by parent(s) with child activty: activities between parent and child ppcnflct: conflict between parents pccnflct: conflict between parent(s) and child soccap: social capital measures (e.g., extended kin and community contact(s) rules: house rules for child regarding homework, television watching, bed time, dating, etc. commun: frequency, styles and/or content of communication between parent and child violnce: reports of physical violence within the family spend: family spending patterns marhist: parental marital histories deprsn: parental depression measures biopar: all biological parents of child within household are identifiable 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 37 Survey Characteristics Special Special Sample Advantages Problems Size Periodicity black institut 17,110 children 1981, 1988 absparent immig in 1988 (cross-sectional) exact Contextual Data neighhd: measures of neighborhood characteristics school: measures of school and/or classroom characteristics (e.g., curriculum, student body demographics) zip: zip code level data available, or zip code identified county: county-level characteristics available, or county identified state: state-level data available, or state identified peer: information on peers of child (e.g., characteristics, attitudes) move: residential mobility history Special Advantages sibs: siblings are included in the sample and identified Black: Black oversample Latino: Latino oversample Asian: Asian oversample child: child is surveyed bothpar: both parents are surveyed, if in same household exact: exact relationship of child to all household members is determined tract: tract-level data has been appended to the survey absparent: data on the absent (noncustodial) parent is gathered cheval: child evaluations are performed in person or through standardized tests Special Problems follow: child is not followed if child moves to a new household foster: foster children not included is sample frame, or not separately identified institut: institutionalized children not included in sample frame unrep: sample is not nationally representative nopar: parents are not surveyed immig: cannot identify children of immigrants 

TABLE 2 Review of Child Outcomes Covered in Federal Surveys 38 Child Outcomes By Age Group Survey Birth 0-5 6-11 12-17 18-24 25+ Panel Study of Income Health cog/ed cog/ed health Dynamics (PSID) demog demog cog/ed work work demog income welfare work income welfare income National Longitudinal Survey of health health health Youth (NLSY) cog/ed cog/ed cog/ed behav behav behav demog demog demog work work work welfare welfare welfare income income income National Longitudinal Survey of prenat health health health (future) (future) Youth—Child-Mother Data health cog/ed cog/ed cog/ed (NLSY-CM) behav behav behav presch chcare demog chcare work income National Educational Longitudinal presch cog/ed (future) (future) Survey of 1988 (NELS88) behav demog work INTEGRATING FEDERAL STATISTICS ON CHILDREN 

National Survey of Children health health health health (NSC) cog/ed cog/ed cog/ed behav behav behav chcare demog demog work work welfare welfare income Survey of Income and Program health health health Participation (SIPP) chcare chcare cog/ed demog work welfare income National Survey of Families and health health health health Households (NSFH) cog/ed cog/ed cog/ed cog/ed behav behav behav behav presch chcare demog demog chcare work work welfare welfare income income High School and Beyond health health (HS&B) cog/ed cog/ed behav behav demog demog CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES work work welfare income Consumer Expenditure work Surveys (CEX) income 39 

TABLE 2 Continued 40 Child Outcomes By Age Group Survey Birth 0-5 6-11 12-17 18-24 25+ National Crime cog/ed Victimization Survey work (NCVS) Decennial Census, Public presch cog/ed health Use Micro-Sample (5%) demog work welfare income National Health Interview prenat health health health Survey—Child Health health behav cog/ed cog/ed Supplement 1988 presch behav behav chcare chcare demog prenat: mother received prenatal care health: health measures, general or specific cog/ed: cognitive ability and educational attainment measures, such as standardized tests, grades, and/or years completed behav: behavioral problems measures (such as the BPI), delinquent and pro-social activities work: employment information such as usual hours and weeks worked, employment history, and job classifications demog: fertility and marriage data on the child welfare: information on welfare receipt by the child income: income generated by the child presch: preschool measures such as participation, cost, and type and characteristics of program chcare: child care measures such as hours per week, type and characteristics of provider, and costs INTEGRATING FEDERAL STATISTICS ON CHILDREN 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 41 whether they add to a child’s well-being immediately, time and money are expended with the intent of enhancing the future health, cognitive ability, and productive social behavior of children. Resources with which investments in children are made take many forms and are derived from the various systems or, to use Bronfenbrenner’s term, contexts in which the child develops. We classify these as family, kin, peer, school, neighborhood, community, and larger societal systems. Soci- etal systems include government policies that provide (or deplete) resources for children in general or for particular subgroups of children. Decisions about resource investments are made on an almost continual basis by parents and, in adolescence, by the children themselves, in the context of changing circumstances and opportunities. Communities and the national government make decisions about institutional investments less frequently, although investments are ongoing at these levels as well. Constraints on Choices Choices are always constrained. No parent can expend more than 24 hours in a day for work, parenting, sleep, and leisure-time activities. A poor mother faces a difficult choice if she wants to move to a better neigh- borhood or school district, in that her limited income must be spent for food, clothing, and other basic needs as well as housing. A mother who is physically ill or has a mental health problem may not have the energy to invest a great deal of time in providing her child with stimulating experi- ences or acting in a warm and responsive manner. Parents with two or more children must divide time, money, cognitive investments, and emotional resources among the children. Not only do parents with different levels of economic and psychological resources distribute them differently, but also individual parents with the same set of constraints may also make different choices (e.g., how much time to spend with a given child). Analogous limitations constrain choices regarding the provision of extrafamilial resources. Voters and administrators make choices about how much to spend on schools, how much to invest in programs for disadvan- taged schools, how to organize and staff schools, and how much to spend on extracurricular activities. All of these influence the institutional resources invested in a given child. These constraints may influence children directly (via a school’s facilities and climate for learning) as well as indirectly (via the family’s investment in the schooling process itself). Types of Family Resources and Interactions Among Resources It is useful to concentrate on four general kinds of resources: financial, time, psychological, and human capital. Economic models have looked at 

42 INTEGRATING FEDERAL STATISTICS ON CHILDREN the financial and time resources that are made available to the children in a family (Hill and Stafford, 1980; Lazear and Michael, 1987) and consider the human capital (e.g., schooling level) of the parent as an indicator of the likely “quality” of the parent-child interaction time. Much more is known about income than about time use. Time-use diaries have been extremely useful in describing the activities on which parents spend time and how much time is spent in child-oriented activities (Timmer et al., 1985). De- spite this work, very little is known about how income and time are distrib- uted across children within individual families—that is, how much is allo- cated to various household members or the process by which trade-offs between income and time are made. Human capital includes the parents’ levels of formal schooling, to- gether with special skills, training, and other characteristics that affect fi- nancial or “psychic” income. Psychological resources at the family-system level include characteristics of the parents as well as parenting behavior. Relevant characteristics include the mental and physical health of the par- ents, the quality of their relationship, the psychological importance to them of factors such as education and work, and beliefs about the parental role in childrearing. Parenting behavior includes a wide range of behaviors di- rected toward the child as well as interactions between parent and child. Some of the most important include provision of learning and stimulating experiences, communication and decision-making styles, warmth directed toward the child, disciplinary practices, monitoring and supervision, and engagement. All of these have been shown empirically to be associated with child well-being (Maccoby and Martin, 1983; Bornstein, 1995; Holmbeck et al., 1995). Parents vary as to their ability to provide these resources (i.e., a mother with little education may not provide many learning experiences because she herself is unable to read, a parent with little money may not be able to purchase books). Parents also make decisions that make it more or less likely that such psychological resources will be available to the child. For example, the barely literate mother might be able to enter a literacy pro- gram or be part of a family resource program that could provide such ser- vices. The poor mother may not be able to buy books, but, if the neighbor- hood or school has a library outreach program, she would be able to bring books into the home. Such parental decisions, however, are constrained by factors such as time availability and the resources available in the neighbor- hood. Parents face choices about allocating their limited resources. Resi- dence in a single-parent household means less parental time is available to the child (Hill and Stafford, 1980; Nock and Kingston, 1988). Residence in a stepparent household also results in less time spent in parental interaction than would be expected given the presence of two parent figures (McLanahan 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 43 et al., 1991; Thomson and McLanahan, et al., 1993; Hetherington, 1993). Other adults in the household may provide the child with more time with a parental figure. For example, in multigenerational households, the grand- mother or grandmother figure often functions as a coparent with regard to responsibilities and time spent with the child. Coresidence in multigenera- tional households presumably would offer children more resources (see Furstenberg et al., 1987; Furstenberg, 1976; Kellam et al., 1982), except in cases in which the grandparents cannot help with child care or, if ill, might require care themselves (Chase-Lansdale et al., 1994). If both parents work, or if a single parent works, time is severely con- strained. However, one would expect the addition of extra income to com- pensate in part for the time constraint. With greater income, from example, parents are able to purchase better-quality child care services. For families at the low end of the income spectrum, however, the loss of time due to working is probably not offset by high-quality child care, in that child care choices are constrained by income if relatives are not available (Hofferth and Phillips, 1991). Trade-offs also involve social capital and psychological resources. If mothers who work find juggling work and parenthood stressful or unsatisfy- ing or too much of a time drain, they may put less effort into providing stimulating experiences for their children or may exhibit less warmth to- ward their children (Wilson et al., 1995; Weinraub and Wolf, 1983; Lerner and Galambos, in press; Zaslow et al., forthcoming). If a mother who is residing with her own mother is not working (or bringing money into the household), conflicts may arise over the roles of both generations in the care of the children, which may be translated into less warmth or less provision of learning experiences by either the mother or the grandmother (Brooks-Gunn and Chase-Landsdale, 1995; Chase-Lansdale et al., 1994). Types of Extrafamilial Resources Important time and money inputs also come from institutions (e.g., schools, youth centers) outside the family. In addition, social capital has recently been conceptualized as an important potential resource (Coleman, 1988). Extrafamilial social capital consists of the interpersonal connections that families establish with people outside their immediate families. Time (e.g., helping others, volunteer work) and money invested by the family in these connections build a stock of resources that the family can call on when necessary. A neighborhood rich in connectedness among families and individuals and with high expectations for its children has a level of trust and stability that could prove extremely beneficial to children. A study by Garbarino (1991) is illustrative. He looked at various neigh- borhoods in terms of child abuse and neglect rates, fitting a regression line 

44 INTEGRATING FEDERAL STATISTICS ON CHILDREN for the rates of abuse/neglect and neighborhood income. Of special interest were neighborhoods with negative residuals—that is, neighborhoods that would be expected to have higher child abuse rates than was actually the case. These neighborhoods were characterized by stability, supportiveness, and trust—in other words, they appeared to have high levels of social capi- tal. Overall, however, we know relatively little about how connections to the community promote child well-being. Development and Resources Most resource models do not take into account the age of the child or adolescent. The volume and type of resources may be more highly associ- ated with well-being at some ages than others. For example, the spacing of births is more linked to academic outcomes during the preschool years (i.e., school readiness) than during the adolescent years (Furstenberg et al., 1987). Having many preschool children is probably detrimental because young children benefit from high rates of parental interaction; time spent with parents decreases dramatically during late childhood and even more in ado- lescence (Feldman and Elliott, 1990). Consequently, having many children, all of whom are young, takes away parents’ ability to spend time with each of them. Moreover, resource models do not take into account individual differ- ences in children. An illustration may be taken from the work on low- birthweight children. Very low-birthweight children (1,500 grams or less at birth) often have difficulties in regulating moods and states. Parents who have little psychological or human capital may not be as responsive to the special needs of their biologically vulnerable child. They may not avail themselves of community services to provide themselves with better parenting skills or the child with remedial intervention. Biologically vulnerable chil- dren may be more affected by familial or extrafamilial resources than chil- dren without biological problems. Similar arguments may be made with respect to children who have emotional vulnerabilities (i.e., the child who is temperamentally difficult, shy, or active) or cognitive vulnerabilities (i.e., the child with mild mental retardation or developmental difficulties). Current resource theories also do not explicitly consider the intersec- tion of familial and extrafamilial resources. That is, certain families may benefit more from resource-rich neighborhoods than others (Klebanov et al., 1994; Duncan et al., 1994a). Consequently, we wish to extend our resource-based framework to include age-sensitive measures, individual dif- ferences, and context. These additions provide links between resource frameworks and existing life-course and ecological (contextual) frameworks. 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 45 CRUCIAL DESIGN FEATURES OF DEVELOPMENTAL DATASETS The breadth of the constructs included in the various theoretical per- spectives that are incorporated into a resource framework requires a range of data to test these theories. In this section we identify key elements of datasets that have proved especially useful in testing and drawing policy conclusions from the theoretical framework we advocate. We begin with examples of measures of developmental outcomes, resources, and family processes identified by theory as important. We turn next to methodologi- cal issues, producing illustrations of survey design features that have proved invaluable in implementing and estimating the models. Many of the illus- trations are based on results from smaller-scale studies; all have implica- tions for the data collection improvements we outline in this paper. High-Quality, Longitudinal Measurement of Child Outcomes In measuring child outcomes, the goal is to identify objective indicators of competence or well-being. No matter how objective a parent is about the characteristics of his or her child, it is difficult for anyone to judge accu- rately the achievements of the child across a range of behaviors. Even in an instance in which parents are asked to describe simply whether a child has achieved a particular developmental milestone, variations in parental defini- tions can affect outcome rankings. For example, in responding to the Social and Motor Development Scale in the 1981 Child Health Supplement of the National Health Interview Survey, mothers with graduate-level educations were more critical of their young children. And teachers in a school at- tended by children of highly educated parents may be more critical of an average child than a teacher would be who saw the same child in the con- text of a community with a lower educational level. For these reasons, it is desirable to use standardized and nationally normed measures whenever possible. Longitudinal assessment of outcomes is desirable since how changes in resources influence children’s circumstances is a question for both theory and policy. Theoretically, issues center on how malleable development is, and what boundaries constrain development (Brim and Kagan, 1980; Hunt, 1961; Lerner, 1984). Of policy relevance is also whether changes in mater- nal circumstances, such as education, marital status, employment, and wel- fare receipt, have the potential for altering children’s development (Wilson et al., 1995; Brooks-Gunn, in press). Programs targeting at-risk, often poor families are typically based on the assumption that altering family circum- stances will benefit children as well as parents (Huston, 1992; Chase-Lansdale et al., 1994; Palmer et al., 1988). However, without outcome data on chil- 

46 INTEGRATING FEDERAL STATISTICS ON CHILDREN dren prior to and following a change in family resources (such as maternal movement from welfare to work, maternal completion of schooling, family enrollment in a supplemental food program) or a change in community resources (such as entrance into a Head Start program or another early education program, use of a neighborhood family resource program), it is impossible to determine whether a child outcome is due to the resource change or to unmeasured differences between families who did and did not change their circumstances or receive a community resource.2 Thus, direct, longitudinal assessment of child outcomes, using nationally normed tests, represents an important component of any large-scale data collection ef- fort. Measurement of Age-Appropriate Outcomes It is essential to assess child outcomes in ways that are optimal for the age and developmental stage of the child. Standardized cognitive and school achievement tests take into account the rapid changes that occur throughout the childhood and adolescent years. Even then, some tests are not appropri- ate over the entire first two decades of life. Infant intelligence tests are constructed quite differently from childhood tests, in part because of the limited language abilities of infants and toddlers (Brooks-Gunn and Weinraub, 1983). Intelligence tests like the Weschler series have different versions for preschool children and for older children and adolescents (WPPSI and WISC). Instruments used in national surveys to assess cognitive ability (e.g., PPVT-R; Dunn et al., 1981) focus on one aspect of language competence— receptive language or vocabulary. Although appropriate for children from age 3 through adulthood, they may be of limited use at the younger ages, especially for children who have not had any experience with situations such as naming and pointing and for children who, because of adverse family circumstances or biological conditions, are not speaking at age 3. The Bracken Basic Concept Scale assesses school readiness and is also brief and easy to administer in a home setting, even for an interviewer untrained in psychometric testing. School-related outcomes also are sensitive to developmental age or phase. Grade failure is not a particularly good question to ask about children in kindergarten and first grade to predict failure from earlier experiences, since school situations are often quite fluid in the early grades. Similarly, current grade repetition is not relevant for high school students, since so few are held back. Instead, dropping out of high school and school absence are better measures of academic problems during high school. Age grading is also important for behavior and emotional problems. What is considered a problem at one age may not be at another. A good example is biting: many young children go through a phase of biting oth- 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 47 ers. Consequently, behavior problem scales (parents or teachers are asked to rate the frequency or severity of a list of behaviors and feelings, typically on a 3-point scale) are usually standardized by age. Measurement of Developmental Phases and Transitions Ideally, data collection efforts assessing child outcomes and family re- sources should be designed to permit estimation of models during and through key developmental phases and transitions. Scholars of child and adolescent development differ as to how to identify a phase or a transition period, as well as on whether development is so continuous that it is meaningless to talk about phases or transitions. However, school transitions in our society mean at the very least a movement to a different organizational structure as well as a change in how family, peers, teachers, and neighborhoods relate to the child. These transitions include the transition from preschool to el- ementary school, the transition to middle (or junior high) school, the transi- tion to high school, and the transition out of high school (into the work force, higher education, vocational training, or unemployment). We believe that much more work needs to focus on these transitional periods. It is clear that many children fare poorly at these transition points, which in turn undermines their life trajectories (Alexander et al., 1993; Natriello, 1987; Brooks-Gunn et al., 1993a; Simmons and Blyth, 1987). Other transitions are important to an understanding of children’s development. The transi- tion to parenthood is crucial because it sets the stage for subsequent parent- child relationships, family interchanges, and potential gender-role divisions in the care of offspring and residence with the offspring (Ruble et al., 1990; Deutsch et al., 1988; Belsky, 1984; Cowan and Cowan, 1990; Shereshefsky and Yarrow, 1973). The experiences of the mother and her unborn child also influence the health and neurological competence of the newborn, with concerns about adequacy of prenatal care, prenatal drug use, and prenatal stress and support being paramount (Robins et al., 1993; Berendes et al., 1991; Institute of Medicine, 1985). The Child-Mother Supplement of the National Longitudi- nal Survey of Youth is one dataset that, by starting the study prior to childbearing of the original adolescent cohort, allows an opportunity to study this transi- tion (Chase-Lansdale et al., 1991). Transitions that typically involve young adults (and in some cases adolescents) are not studied in great detail. We would include here the transition to a household separate from parents and parental figures and the transition into the work force (which does not always occur at the end of adolescence and high school). Thus, in terms of national data collection efforts, questions should be tailored to at least five age groups—the four school groupings and the 

48 INTEGRATING FEDERAL STATISTICS ON CHILDREN infancy period—and focus on transitions between these periods as well as transitions into adulthood and parenthood. Multiple Domains of Outcomes The important domains of child and adolescent outcomes include the cognitive, emotional, social, health, and school-related (Brooks-Gunn, 1990). Employment, earnings, and fertility also become important in the late teen and early adult years. Outcomes in these various domains are linked in different ways to family and community resources. An example may be taken from the Baltimore Study of Teenage Moth- erhood, a 20-year longitudinal study of more than 300 young women who gave birth in Baltimore in the late 1960s, their mothers, and their children (Furstenberg et al., 1987; Brooks-Gunn et al., 1993b). Different kinds of family resources predicted school failure (grade failure by age 16 and high school dropout by age 19 to 20), early sexual experience (intercourse by age 16), and behavior problems (a scale score). Number of children in the family during the preschool years was associated with school failure but not early sexuality. And the presence of a father figure in the home during the early adolescent years was important in delaying the sexual debut but was not predictive of high school difficulties. Another reason to include multiple domains is that, in many cases, children and youth who are not faring well in one domain are also having problems in another domain. Ongoing research is examining the ways in which adolescents’ problems occur together and the sequencing of the emergence of problem behavior (Dryfoos, 1990; Jessor, 1992). Subgroups of adoles- cents exhibit clusters of risk-taking behaviors, and certain risk-taking be- haviors show a somewhat orderly progression of acquisition (cigarette use in the elementary school being predictive of alcohol and marijuana use in the middle school being predictive of the use of other drugs in high school years; Yamaguchi and Kandel, 1984). Including a narrow range of out- comes in a study would not allow for an examination of the clustering and timing of problem behaviors. Thus surveys should consider measuring out- comes across different domains. High-Quality, Longitudinal Measurement of Family Resources Most theories of child and adolescent development view as important the overall level of family economic resources. The statistical relationship between available material resources and child well-being is well estab- lished in the literature (Kalmuss and Fenelly, 1990; U.S. Department of Health and Human Services, 1992; Duncan et al., 1994b; McLoyd, 1990; 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 49 Shaw and Emery 1987; Dryfoos, 1990; Wilson, 1987; Hill and Duncan, 1987; Mare, 1980; Brooks-Gunn et al., 1993a). Underappreciated in much of this literature, however, is that longitudi- nal studies find great temporal variability in family income, both within (Survey of Income and Program Participation) and across (Panel Study of Income Dynamics) years and both within and outside the United States (Duncan et al., 1993). One-quarter of U.S. families who are poor in one year are not poor the next (U.S. Bureau of the Census, 1989), and only about one-half of children who are poor in a given year are poor over longer periods (Duncan and Rodgers, 1991). What implications does this variabil- ity have for studies of child and adolescent development? Duncan et al. (1994a) use data from the Infant Health and Development Study to relate patterns of short- and longer-term poverty over the first five years of life to IQ at age 5. After controlling for conventional demographic and socioeconomic measures (family structure, maternal education), they find powerful associations between IQs and family income levels. Of par- ticular interest is the finding that the IQs of ever-poor children are affected by the persistence of their poverty. Net of numerous controls, children poor on all four occasions when family income was measured scored five IQ points lower than did children in families whose income histories showed only transitory poverty. This and other research suggests a crucial role for family economic resources in models of child development (see Duncan et al., 1994a). It should be noted that detailed assessments of family income provide a great deal of additional information on the family’s situation, including welfare receipt, labor market involvement, and income-generating assets (wealth). Accordingly, we draw two conclusions. First, in addition to conven- tional measures of family socioeconomic status, high-quality measurement of family income is crucial for testing resource-based theories of child and adolescent development. And second, also important is longitudinal mea- surement of family income, enabling researchers to distinguish between temporary and persistently low levels of family economic resources. Measurement of Time Inputs Although given a prominent place in most developmental models, mea- sures of the quantity and the quality of time spent by parents with their children are almost never available in the kinds of datasets we review. Maternal schooling level is typically used as a measure of the likely quality of the mother’s time. Mother’s supply of labor outside the home is usually measured and sometimes taken as a (problematic) indicator of time not available for parenting activities. Although several surveys ask questions 

50 INTEGRATING FEDERAL STATISTICS ON CHILDREN regarding time spent in a variety of parent/child activities (e.g., television, homework, meals, special activities), there is virtually no recent, direct measurement of parental time inputs. Careful measurement of such time inputs was achieved in a national time-use study conducted in the late 1970s and early 1980s (Juster and Stafford, 1985). Following methodological work suggesting that time dia- ries are the best method for obtaining unbiased measurement of time inputs, such diaries were obtained from a national sample of adults and children. When coupled with teacher reports of academic achievement in elemen- tary school, the coding scheme enabled Stafford (1987) to analyze the de- velopmental consequences of parental time spent in direct learning activi- ties, such as reading to children, as well as other parental activities at which children were present. Although it should be kept in mind that his results are based on small samples, Stafford found highly significant effects of direct activities on academic achievement. Time diaries on children require roughly 15 minutes of interviewing time per recalled day and are thus a time-intensive method for collecting data on parental time inputs. Periodic comprehensive measurement of pat- terns of parental time use are highly desirable. Some existing national surveys should consider adding shorter question sequences that would pro- vide at least some data on parental time inputs. Measurement of Family Process Family processes or functioning are important to the health and devel- opment of children, both in their own right and as mediators of material resources and child outcomes. A recent review of the literature has identi- fied a number of important categories of measures of family processes that affect child well-being, including communication (parent-child and parent- parent), parent-child time together and activities, degree of commitment to the family, degree of social connectedness, religious/spiritual orientation, capacity to adapt to new situations, and the existence of clear family roles (Krysan et al., 1990). In addition, family conflict and styles of parental discipline are often emphasized in this literature (Zill, 1983). The statistical relationship between available material resources and child well-being is well established in the literature. Low income has been related to less adequate prenatal care (Kalmuss and Fenelly, 1990), low birthweight and higher infant mortality (U.S. Department of Health and Human Services, 1992), slower cognitive development (Duncan et al., 1994b; McLoyd, 1990; Shaw and Emery, 1987), higher rates of adolescent risk behaviors (Dryfoos, 1990), and lower levels of educational and socioeco- nomic attainment as adults (Wilson, 1987; Hill and Duncan, 1987; Mare, 1980). 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 51 Relatively little is known, however, about the processes internal to the family that can account for observed relationships between resources and outcomes.3 Our resource model indicates that family processes will to some extent mediate the relationship between available material resources and child outcomes (see, for example, Klebanov et al., 1994). However, it is often argued that observed relationships between material resources and child well-being are in fact the result of currently unmeasured or poorly measured family processes that correlate with material resources but are not determined by them (e.g., Murray, 1984). This is an important distinction, since the policy implications are vastly different depending on how one specifies these relationships. In either case, however, the proper measure- ment of family processes, and their inclusion in models relating material resources to child well-being are key to a deeper understanding of the links between material resources and child well-being. Multiple Levels of Measurement Although studies of community influences on human behavior have a long tradition (Park et al., 1967; Wirth, 1956; Shaw and McKay, 1942), only recently have researchers successfully combined individual, family, and neighborhood-level measures in national or multisite developmental datasets. Much of this work was inspired by William Wilson’s (1987) theories of social isolation as inherent in neighborhoods with particularly high concentrations of poor people. Among the notable empirical contributions to this recent literature are Crane’s (1991) and Clark’s (1993) respective analyses of specially linked family-tract cross-sectional files from the 1970 and 1980 census-based Pub- lic Use Micro-Sample (PUMS) files; Brooks-Gunn et al.’s (1993b) exami- nation of neighborhood effects in the PSID and the Infant Health and De- velopment project; and the Garner and Raudenbush (1991) study of data, analyzed with hierarchical linear models, on a sample of children in one education authority in Scotland in the mid-1980s coupled with areal data taken from the 1981 Census of Population. In the U.S. studies, neighbor- hood data are usually obtained from tract-level economic and demographic data from the decennial census and matched to families’ addresses. Most U.S.-based sources have found that, after controlling for family- level resources, the presence or absence of affluent neighbors is a more powerful predictor of adolescent well-being than is the presence of low- income neighbors—a finding that supports theoretical models of neighbor- hood effects based on beneficial neighborhood institutions (e.g., police pro- tection, parks, schools) rather than the “epidemic” models based on peer-induced contagion effects.4 Given the early stage of this research, these findings 

52 INTEGRATING FEDERAL STATISTICS ON CHILDREN should be viewed as tentative but intriguing, with much more still to be learned about the influences of neighborhood resources. National household surveys should append neighborhood-based data to their data files. This task is often surprisingly easy, especially in the first wave of most national surveys. This is because the tract/Block Numbering Area (BNA) identifier of sampled addresses is routinely gathered as part of the sampling process.5 It is a simple and inexpensive matter to use these identifiers to merge neighborhood characteristics (e.g., poverty rate, extent of female headship, male joblessness, ethnic composition) from STF3 de- cennial census data files. The resulting merged family-neighborhood files offer a rich combination of interview-generated family data and cen- sus-generated neighborhood data that can be used as independent variables in various analyses of child development. Given their geographic detail, such merged data raise confidentiality issues.6 In the case of census Bureau data collections, the use of these matched data could be limited to census analysts as well as outsiders serv- ing as census fellows. As for data collections outside the federal govern- ment, the matched data could be released under special contractual condi- tions, such as those applicable to the PSID. Whenever possible, appending information regarding other extrafamilial environments, most notably school characteristics, would also be valuable. NCES samples are generally drawn from schools, and school-level data are routinely made available in analysis files. Household-based surveys must incur more expense in gathering school-based data. When such information is drawn from a survey of the teachers of the children in these samples, the questionnaires (which can be set up to use less expensive self-enumeration) can be designed to provide information on both the achievements of the individual children and key aspects of the school environment. There is also the possibility of asking families about key elements of their neighborhoods—danger, drugs, unemployment, etc. This would en- able researchers to address the methodology question of the extent to which perceptions and tract-level variables match, as well as the more substantive issue of how perceptions and objective characteristics interact. For ex- ample, resilient families may live in bad neighborhoods and perceive them as bad, but they may then respond to these conditions with intensive efforts to monitor their children. Less resilient families may live in bad neighbor- hoods but not perceive them as such and therefore not engage in as much monitoring. Measurement of School Contexts Schools are an important extrafamilial environment for child and ado- lescent development. Information on school functioning can be collected 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 53 from self-enumerated teacher questionnaires that are sent to the child’s school after permission to contact the teacher (and the teacher’s name and address) is obtained from the parent. Data that can be collected include: (1) charac- teristics of the child, such as school grades, school engagement, parental involvement, school absences, peer relationships/social competence, atten- tion in the classroom, and classroom-related behavior problems and (2) school characteristics, such as social climate, ethnic mix of students (in a given classroom), and teacher experience/credentials. In several national or multisite studies, response rates to such teacher surveys range between approximately 75 and 80 percent (e.g., National Survey of Children, Moore and Peterson, 1989; Infant Health and Develop- ment Program, Brooks-Gunn et al., 1993b; Study of Elementary School Outcomes of Low Birth Weight Children, McCormick et al., 1992). The data obtained from elementary school teachers and high school teachers are often different (e.g., high school teachers have much less contact with stu- dents) and teacher-based information on 5- to 7-year-olds is less useful than data on slightly older children, since many children in that age range have not experienced school-related problems or are experiencing transient prob- lems that resolve themselves with emotional maturity or increased cognitive skills. By age 8 and third grade, however, school problems are predictive of subsequent school failure (Brooks-Gunn et al., 1993a; Baydar et al., 1993; Snow, 1983). Measurement of Family Relationships Increased attention should be placed on different household arrange- ments as well as changes in these arrangements. When the focus is on child well-being, national studies must document the relationship of various parents and parent figures to each child. Most research has focused on marital or parental status, rather than on changes in households or on links between marital states and individual children (Brooks-Gunn, in press; Thomson and McLanahan, 1993). Dis- tinctions of potential importance include: (1) stepparent families in which the father is the custodial parent; (2) stepfamilies in which the custodial mother has not been married prior to her marriage to the stepfather (often seen in the case of a never-married single mother, often a teenager, who marries later); (3) never-married single males who marry and become step- parents; (4) custodial parents who marry a third or a fourth time; (5) cohab- iting adults with children; (6) biological parents who have separated or divorced and then reunited; and (7) cohabiting adults each with children from a previous marriage (Brooks-Gunn, in press). It is most common to determine family relationships by selecting a head or reference person and then asking for the relationship between each fam- 

54 INTEGRATING FEDERAL STATISTICS ON CHILDREN ily member and this reference person. This is not sufficient for many important purposes, since it often does not allow the researcher to distin- guish important relationships among members of subfamilies. If, for ex- ample, there is a three-generation family with a grandmother, her two daughters, and the daughters’ children, then the relationship “granddaughter” does not provide enough information to classify children as siblings or cousins. In fact, mothers and their children cannot always be connected. As explained in the next section, we view as crucial the collection of information about family relationships that identifies the natural and stepparents of all chil- dren living in the household. Most work on family relationships has been cross-sectional in nature, not focusing on the effects of changes in these family arrangements (see, as exceptions using national longitudinal datasets in the United States and Great Britain, e.g., Baydar, 1988; Cherlin et al., 1991; Kiernan, 1992). Using a framework focusing on transitions dictates that data on family re- sources and child outcomes be collected over a long enough time period that sufficient numbers of family structure changes will occur (Hetherington and Arasteh, 1988; Hetherington and Clingempeel, 1992).7 It is important to note that transitions in family structure often cannot be inferred reliably in a longitudinal study from changes in reported marital states. A woman married in two consecutive waves may have divorced and remarried between the waves, and, even if an analyst checked for changes, measurement error in husband characteristics (e.g., age) may make it diffi- cult to infer transitions without asking about it directly. Longitudinal stud- ies should ask marital and fertility histories during each wave in a way that covers the entire time interval between waves. Coupled with this work is a concern for the relationship of the child to the noncustodial parent as well as the resources provided to the child by the noncustodial parent (Maccoby and Mnookin, 1992; Garfinkel et al., 1995; Teachman, 1991). It would be valuable for at least some national surveys to collect information on noncustodial parents regarding economic, emo- tional, and time resources. Information on the level of child support pay- ments awarded (if any), the level received, and the stability of receipt would be welcome additions to national data collection efforts as well (Garfinkel et al., 1995). Changes in compliance of noncustodial parents and award of payments as a result of the Family Support Act of 1988 allow for natural experiments, in that one can examine payment levels and contact with chil- dren prior to and following changes in the law, as well as state-to-state variations (see McLanahan et al., 1994, who estimated predicted child sup- port for each state to model differences in child support enforcement policy, using data from the Current Population Survey Child Support Supplement). 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 55 Measurement of Extended-Family Relationships There is great theoretical interest in the extent and effects of intergenerational relations, especially in the flows of time and money between children and their parents. Such flows can affect the resources available to children and the need for public resources. We have already provided examples of instances in which young chil- dren and adolescents living with their parents receive time and some (usu- ally undetermined) share of the family’s total income. Once children enter the late teenage years, they face important decisions about postsecondary schooling, careers, and living arrangements. Transfers from parents, in the form of both time and money, are of great potential importance at this stage. When children continue to live with their parents, the bulk of trans- fers consist of in-kind services. Children’s college attendance can be greatly facilitated if tuition payments are made by parents or grandparents. Choices about home ownership, jobs obtained through personal connections, and start-up capital for independent business endeavors can all be influenced by the financial and social capital of a child’s extended family. Although some of this information (e.g., whether any help was received with tuition payments) can perhaps be recalled reliably by the grown chil- dren, parental financial resources during the time in question cannot be addressed without reliable information on these resources gathered from the parents themselves. Thus it would be desirable for longitudinal studies of children making the transition to adulthood to continue to collect informa- tion from parents as well as children, regardless of whether the children are still living with their parents. There is an added methodological benefit from such information, as illustrated by Gottschalk’s (1992) analysis (based on the Panel Study of Income Dynamics) of the links between parental welfare receipt and wel- fare receipt by daughters as they enter their adult years. He attempts to purge the parental welfare receipt measure of its sources of noncausal cor- relations with daughter’s receipt by using patterns of mother’s welfare re- ceipt after the daughter has left home to adjust for the effects of unobserved heterogeneity. His argument is that the future welfare use of the mothers cannot have caused prior decisions leading to possible welfare receipt on the part of daughters and therefore is a valid control variable for the hetero- geneity. Only by following parents after children leave home is such an approach possible. Natural Experiments Alone among their disciplinary colleagues in their insistence on testing theories against real-world data, labor economists in the last decade have 

56 INTEGRATING FEDERAL STATISTICS ON CHILDREN effected a remarkable transformation in their methodology. Structural mod- els based on tenuous identifying restrictions and ever more sophisticated econometric modeling are being replaced by reliance on “natural experi- ments.” We endorse this development and encourage other disciplines to consider (or, in some cases, continue) work along these lines. Drawing on a long history of work from related disciplines, Currie and Thomas (forthcoming) use sibling data from the National Longitudinal Sur- vey of Youth to compare the cognitive development of siblings, some of whom did and some of whom did not participate in the Head Start program. Because siblings share a similar family background (including material and social resources and aspects of genetic endowment ranging from cognitive ability to temperament and physical and mental health), a comparison of their cognitive differences constitutes a kind of natural experiment, since such differences will be largely free from the confounding effects of un- measured family background. Geronimus and Korenman (1992) and Hoffman et al. (1993) follow a similar strategy with data from the National Longitu- dinal Survey of Youth, the original National Longitudinal Survey cohorts, and the Panel Study of Income Dynamics in estimating sisters’ differences in adult economic and demographic status as a function of whether a given sister had borne a child during her teenage years. More subtle natural experiments have been extracted from datasets that were never designed to be relevant for developmental research. Bronars and Grogger (1992) consider the birth of the second child in twin pairs as an exogenously induced increase in family size in estimating the effects of family size on a family’s economic well-being. Only data released from the decennial census provide enough observations on twins; regrettably, Grogger and Bronars were hampered by the quality of the fertility information avail- able in census files; still, the approach represents a creative use of second- ary data to test theory. Owing to the ingenuity of the researchers and the resulting idiosyn- cratic nature of the experiments, it is difficult to generalize about the litera- ture that has made use of natural experiments. Many of these studies re- quire very large samples, which suggests that child development studies should be added to the many important uses of data from the decennial census in discussions of future design changes. Common to much of the developmental research based on natural ex- periments is the need for clear data on family relationships, especially in the identification of sibling pairs. As noted above, this task proves espe- cially problematic in multigeneration households in which relationships are established between household members and the head or reference person in the household. As set out in more detail below, unambiguous data are needed showing the relationships among all possible pairs of individuals 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 57 who reside in a given family. Also, clean information on birth dates has proved valuable in much of this research. Random-assignment experiments are even better than natural experi- ments in providing exogenous variation in right hand-side measures of in- terest. In 1988, Congress passed the Family Support Act, creating the JOBS program to assist families receiving Aid to Families with Dependent Children (AFDC) in obtaining basic education, job training, and job search services. Because many more AFDC recipients are eligible than are or can be currently served, mothers of preschoolers were assigned either to an experimental group mandated to participate in JOBS or to a control group not so mandated. The developmental effects of this program on the pre- school children of AFDC recipients are being evaluated by Child Trends, Inc., as a substudy of a much larger evaluation of the JOBS program being conducted by the Manpower Demonstration Research Corporation. It is essential that such government experiments with significant potential to affect children be evaluated in light of the possibility of providing experi- mental data on child development. Leverage for Policy Analyses Provided by State-to-State Variation in Program Benefits and Structure Another kind of natural experiment of special interest for policy re- search is rooted in the fact that states often differ from one another in the benefit levels and other key features of the social policy programs they administer. Payments to three-person families from the AFDC program ranged from $119 per month in Alabama to $688 in Alaska in fiscal 1991 (Committee on Ways and Means, 1993). Many studies have attempted to use this variation to infer what would happen to work effort or family structure if the overall level of benefits from programs such as AFDC were to be changed (Moffitt, 1992). For example, Moore et al. (1994) use state- level policy variables, such as the AFDC benefit level, state abortion policy, and the adequacy of each state’s family planning coverage in an event- history analysis of the determinants of adolescents’ age at first intercourse. Similarly, Garfinkel et al. (1994) examine the effect of state child support on the economic status of children with absent parents. Common to all of these studies is the addition of a state-of-residence identifier to the household and individual-level data. Adding state identifi- ers as a routine matter to all national surveys would be invaluable. In cases in which sample sizes within smaller states are judged to be too small to preserve the confidentiality of responding families, we urge that the datasets identify as many states as possible. 

58 INTEGRATING FEDERAL STATISTICS ON CHILDREN Oversamples of Minority Groups Knowledge of the development of minority children and youth in the United States is woefully inadequate (Spencer and Dornbush, 1990; Earls, 1992; Spencer et al., 1985; McLoyd, 1990; Lamberty and Garcia Coll, 1994; Garcia Coll, 1990). Furthermore, studies of minority children and youth tend to focus on problem behavior, rather than on competence or normal development. This is true even though representative samples include mi- norities. Generally, the national datasets reviewed in this paper include enough African-American children and youth for separate analyses. In part, this is due to the fact that African-Americans have been oversampled in many national studies (see Table 1). At the same time, current studies do not allow for a separation of black respondents who are not African Americans (such as Caribbean blacks). Most datasets do not include enough Hispanic- American children and youth, in part because oversampling has not always been done and, unless supplemented by a fresh sample, studies begun in the 1960s and 1970s are not representative of the Hispanic-American immigra- tion patterns of the past 15 years. And only one of the surveys we review oversampled the Asian population (see Table 1). Another issue complicates understanding of Hispanic-American chil- dren and families. Different groups of Hispanic-Americans are quite dis- tinct. Cultural beliefs, place of origin, geographic location in the United States, and recency of immigration all differ for Cubans, mainland Puerto Ricans, Dominicans, and Mexicans, in addition to Hispanic-Americans from other Latin American countries. Groups also differ with respect to their status in the United States and in their country of origin. For example, Cuban-Americans are unable to travel back to Cuba, whereas mainland Puerto Ricans, as citizens, have no restrictions of movement. Other Hispanic- Americans have to contend with immigration restrictions. These differ- ences alter social support systems in this country and the country of origin. In many research situations, it is unwise to treat Hispanic-Americans as a single group. However, with the exception of the oversampling of Cuban-American and Puerto Ricans in the Hispanic sample of the Panel Study of Income Dynamics, none of the national datasets has enough Hispanic-Americans to separate out even the two largest groups: Puerto Ricans and Mexican-Americans. To be most useful, all new national datasets should oversample Hispanic- Americans as well as African-Americans. If resources permit, dataset de- signers should also consider oversampling Asian-Americans as well as His- panic subgroups such as Puerto Ricans. There are also arguments in favor of oversampling on risk factors such as low-income and high-poverty neighborhoods. One, based on experience 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 59 with the Panel Study of Income Dynamics, which oversampled on the basis of low family income, is that such oversampling be done using relatively exogenous factors, such as neighborhood conditions and parental schooling levels, rather than endogenous conditions, such as family income. Whereas weighing adjustments handle the endogeneity problem in theory, in practice many analyses of income dynamics opt to avoid potential problems of endogen- eity by excluding the low-income oversample. Multiple Informants There are several reasons to obtain the perspectives of more than one person about a child and his or her family. The primary reason is that many kinds of information are known better by some persons than others. For example, young adolescents are unlikely to be as well informed regarding their family’s income and asset position as a parent. And the parent is unlikely to know many, if any, details about the child’s use of alcohol or drugs or about his or her sexual behavior. The perspective of a respondent may also be skewed simply because the individual lacks sufficient distance and objectivity to make a judgment. Assessments of children’s behavior by teachers, for example, tend to be considerably less positive than assessments provided by parents (Moore, 1986). Using data from the 1976 wave of the National Survey of Children, Moore found that the evaluation of the classroom teacher seems to be the better predictor of later behavior. When multiple respondents address the same questions or issues, this can help researchers address and perhaps adjust for measurement errors of various sorts. Although obtaining data from multiple informants appears to be an expensive addition to a study, it can often be done rather cheaply. For example, in face-to-face interviews, interviewers are already in the home and can provide assessments on a wide array of topics. The biggest incre- mental cost of obtaining additional information often consists of the careful training of the interviewers and the coding of the observational data. Simi- larly, data from adolescents can sometimes be obtained by giving the ado- lescent a self-administered questionnaire to complete while the parent is being interviewed, or to mail back. Following up on nonresponse can in- crease costs, as can possible additional incentive payments. However, the increment to data quality afforded by having a second respondent is so high in some instances (such as teenage substance use, delinquency, and sexual behavior) that even a substantial additional cost is warranted. Minimizing Attrition in Longitudinal Surveys The utility of data from all surveys is threatened by nonresponse in 

60 INTEGRATING FEDERAL STATISTICS ON CHILDREN their initial (or, in the case of cross-sectional surveys, only) interviewing wave. Longitudinal surveys face the problem of additional nonresponse in subsequent waves. We view as crucial that surveys budget sufficient re- sources to minimize possible problems owing to attrition. Techniques for motivating interviewers and respondents have been developed to produce response rates in the initial wave in excess of 80 percent and to keep subse- quent nonresponse to no more than a few percentage points. Better still are surveys that attempt reinterviews with nonrespondents from prior waves. Some 14 years after its initial interview, the National Longitudinal Survey of Youth routinely interviews more than 90 percent of its wave-1 respon- dents. Some attrition is inevitable even in the best-run longitudinal surveys. An important but neglected challenge in using longitudinal data is to gauge the impact of attrition on estimates of developmental models. It has proved almost impossible to do this since the determinants of attrition overlap extensively with the righthand-side measures in the developmental models. Helpful here would be attrition-related experimental treatments on the part of the survey organizations. For example, one might offer a monetary payment to a random portion (say, one-fourth) of the sample that was well in excess of the payment offered to the rest of the sample. This information would be very helpful in discerning the impact of attrition on the behavior of interest. CHARACTERISTICS OF EXISTING SURVEYS We have chosen for review 12 major federally sponsored surveys con- taining data on children. The surveys have been grouped into three catego- ries: long-term longitudinal, short-term longitudinal, and cross-sectional. In keeping with our emphasis on the importance of collecting data across time, all but two of the surveys reviewed are longitudinal to some degree. Specific suggestions for improving each survey are presented in the next section. The salient characteristics of each survey are presented in Tables 1 and 2, reflecting our criteria for good survey data on children. Table 1 summa- rizes available data on family resources, family processes, and extrafamilial context; special advantages and disadvantages of each survey; and sample size and periodicity.8 Child characteristics are summarized in Table 2 by age group and, within age group, by substantive category. A complete list of possible characteristics for each column is presented at the end of each table, with brief explanations as needed. 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 61 Long-Term Longitudinal Surveys Panel Study of Income Dynamics The Panel Survey of Income Dynamics (PSID) has been conducted on an annual basis since 1968. In 1993, the survey involved some 7,900 households. It includes an oversample of black and Hispanic families, facilitating separate analyses of these groups. Adult family members (and their children) who leave to establish a new household are followed and included in subsequent waves. The survey collects very limited data on all children in the household. Children are interviewed only after leaving to establish their own households. The PSID contains extensive and detailed information on family mate- rial resources; transfer income data are available on a monthly basis. It contains very limited information on family process; however, valuable in- formation is available on family spending patterns. Census data relating to place of residence are available at the tract, zip code, county, and state levels. Only very limited information is available concerning child outcomes before age 16, including birthweight and an occasional report of health status. Schooling, labor, and income data are recorded for all children ages 16 and older. Complete birth histories are also available for all female children age 12 and over. Children who go on to form their own house- holds are given the full battery of survey questions. National Longitudinal Survey of Youth The National Longitudinal Survey of Youth (NLSY) is an annual sur- vey begun in 1979. The original sample included over 12,000 young men and women ages 14-21. A special military subsample was included, as were oversamples for blacks, Latinos, and poor whites. Among respondents to the 1979 survey attrition has been very low, about 10 percent at the 1991 interview. As of 1994, respondents range in age from 29 to 36. Current plans are to continue the survey at least for the foreseeable future. Inter- views will take place every other year after 1994. Parents are interviewed about family income data only, and only when their children are under age 18. All other information on personal and family background is obtained in interviews with the youth. The survey is designed to look at labor force participation and the transition from school to work and so is especially useful for analyses relating to the transition to adulthood. Information on material resources of the family of origin is extensive, but only for those respondents who were living with that family at the time 

62 INTEGRATING FEDERAL STATISTICS ON CHILDREN of the first survey. A limited set of retrospective questions regarding the condition of the family at age 14 is available for all respondents. Process measures for family of origin are practically nonexistent, though some data might be gleaned from a special time-use survey filled out by the youth in 1981 for those youth still living at home. Available contextual data include population descriptors for county and state of residence, characteristics of the high school attended, and a few questions regarding peers. Data files with appended zip code level census data have been created and may be available on a restricted basis. Outcome data are available in many substantive areas beginning with the first year of the survey, at which time respondents ranged in age from 14 to 21. Many measures are available on a yearly basis into adulthood (ages 29-36 as of 1994). The dataset is particularly rich in schooling and labor force data. For example, labor force activity data are available on a weekly basis beginning with the calendar year previous to the first survey in 1979. Some retrospective data regarding fertility, drug use, and high school activities are available for all respondents. National Longitudinal Survey of Youth: Child-Mother Data Surveys of the children of female respondents of the NLSY were begun in 1986 and continue on a biennial basis. Following the NLSY sample frame, there is an oversampling of blacks and Hispanics. All children in each family are surveyed, allowing for analyses of sibling pairs. Although the sample of women in the NLSY is nationally representa- tive, the sample of their children is not representative at present, since they are disproportionately the children of early childbearers. As the survey continues and children of delayed childbearers become part of the sample, it will become increasingly representative. All of the data collected in this biennial supplement are merged with the annual data collected in the NLSY main data file. Thus, there is a considerable amount of detailed income, education, and labor force infor- mation available on the parents of these children, particularly the mothers. Family-process data are limited but include a HOME environment scale and questions relating to marital conflict. Contextual data are limited to county and state characteristics. Through a combination of mother interview and in-home child assess- ment, detailed and age-appropriate measures of each child’s social, emo- tional, cognitive, and physiological development are taken. These measures include the Behavior Problems Index, the Peabody Picture Vocabulary Test- Revised, the McCarthy Scale of Children’s Abilities, and the Peabody Indi- vidual Achievement Test. In 1992, questions were added concerning televi- 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 63 sion-viewing habits and how older children spend their time after school. Pre- and postnatal information is also gathered for each child. Although plans to interview teachers have been dropped, school data are being added to the Child-Mother data file. Starting in 1994, the chil- dren of the NLSY ages 15 and over will be given a full, personal interview of the kind given to their parents when the study first began. A new NLSY cohort study is to be fielded; it will probably include some of these children of NLSY mothers in the new sample. National Educational Longitudinal Survey of 1988 The National Educational Longitudinal Survey (NELS88) is a large, nationally representative longitudinal survey of eighth graders begun in 1988, designed to focus on school and school-to-work transitions. The survey has been taken every two years from 1988 to 1994. The next wave is planned for 1998. The initial sample size was 24,599 students from 1,057 public, private, and church-affiliated schools. The sample has been enlarged in 1990 and 1992 in order to make it representative of 10th and 12th graders for those respective years. Because of a two-stage cluster sample design that included approximately 24 children per sample school, hierarchical linear modeling (a multilevel analysis technique) can be applied to these data. The survey includes responses to detailed questionnaires from students, their parents, several teachers, and the school administrator. Student achievement scores are also included. Parent questionnaires were left out of the 1990 wave, leaving an unfortunate gap in the data on family background. Data on family material resources are sparse, limited to total family income and assets (parental report). Family-process measures include ques- tions about parent-child activities and time together, rules, and patterns of parent-child communication. In 1992, questions were asked of parents re- garding their intended financial contributions toward their child’s postsecondary education. Contextual data are a great strength of this dataset. Detailed information regarding the characteristics of the school and the specific classes attended by the student is included. Some questions are asked about peer attitudes. Finally, census data for each school catchment area are available on a restricted basis to specially licensed data users. Child outcomes concentrate on schooling and academic achievement and also include questions on work, prosocial and delinquent behaviors, and childbearing. Information on preschool attendance is the only retrospective child data gathered. 

64 INTEGRATING FEDERAL STATISTICS ON CHILDREN National Survey of Children The National Survey of Children (NSC) is a longitudinal survey begun in 1976, with a sample of 2,301 children ages 7-11. Waves 2 and 3 (com- pleted in 1981 and 1987) followed a large subset of these children through ages 18-22. In wave 2, the survey included all children of disrupted or high-conflict families and a subsample of the rest. The sample size at wave 3 was 1,147. No further waves are planned. Black households were oversampled. Two children were interviewed in a subsample of households (554 families in 1976), allowing for the possibility of sibling studies. Parents, teachers, and children were all interviewed. The initial wave included in-person child assessments. Similar questions are often asked of both parents and their children, allowing for interesting comparisons across respondents. Data on family material resources are limited primarily to the year in which the interviews took place, although some retrospective information was obtained in wave 3 regarding welfare receipt and maternal employment patterns. Family income is recorded in categories. The family-process measures are the most detailed and numerous of any of the surveys re- viewed here. They include measures of family activities, time together, parent-child and parent-parent communication and decision-making styles, styles of parenting, rules in the home, measures of parental conflict and violence, and detailed parental marital histories. Data on the quality of relations of both parent and child with the absent parent post-separation/ divorce are also gathered. Contextual data include characteristics of the child’s school, school classes, and neighborhood, as well as zip code and state-level characteristics, including state policy measures such as AFDC benefit level. Child outcome measures include a broad array of age-appropriate mea- sures of physical health, cognitive abilities and achievement, emotional well- being, and social development. The data have been used most frequently to examine the impact of family processes (particularly separation and di- vorce) on various measures of child development. Short-Term Longitudinal Surveys Survey of Income and Program Participation The Survey of Income and Program Participation (SIPP) is a continuous survey in which panels are interviewed every four months for approxi- mately two and one-half years. It is a representative survey of the U.S. civilian noninstitutionalized population. Panels have varied in size from 13,000 to 21,500 households. The 1993 panel has 20,000 households. Be- cause of the overlapping design, cross-sectional analyses can be produced 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 65 combining two panels, doubling the sample size in many years. Members age 15 and older (and their dependents) who leave the household during the period covered by the survey are followed. The core questionnaire, repeated every four months, asks detailed ques- tions concerning employment, income, and participation in federal social support programs. Much of the information is collected on a month-by- month basis. Questions are asked about all adults age 15 and over in the household. Special modules covering personal history and data on school enrollment and financing are administered once or twice to each panel. In addition, there are a number of special topical modules. Some have been asked of every panel to date; others have been fielded only once or twice. Topics include child care arrangements, child support agreements, functional limitations and disability, utilization of health care services, sup- port for nonhousehold members, and others. Information on family processes is very limited. Marital histories are available for parents in the household. Detailed child care information is collected concerning each of the three youngest children in the household. In addition, the child support module (asked once of each panel) gathers detailed information regarding child support agreements, payments made, and time spent by children with the noncustodial parent. Information in the core questionnaire is gathered for all children in the household who are age 15 or older. Information beyond basic demographic information (age, sex, etc.) is generally not available for children under age 15, unless collected in a topical module such as the module on child care. Beginning in 1996, the Census Bureau plans to change the sample de- sign and field nonoverlapping panels of 50,000 households, to be followed for a total of 52 months. In addition, a special SIPP panel, the Survey of Program Dynamics (SPD), is being designed to last for 10 years. The SPD will make special efforts to collect data on the children in SIPP households. It will be designed as an extension of the SIPP 1993 panel. National Survey of Families and Households The National Survey of Families and Households (NSFH) was designed to accommodate family-oriented research on a wide variety of topics and from many research perspectives. Households were originally surveyed in 1987-1988, and again five years later. There are no plans at this time to follow up with a third wave, although respondents are being tracked, mak- ing a third wave possible. The original sample included over 13,000 house- holds, with a total of 7,926 children represented in those households. Double samples were taken for black and Hispanic households, single-parent fami- lies, cohabiting and newly married couples, and households with stepchil- 

66 INTEGRATING FEDERAL STATISTICS ON CHILDREN dren. The oversampling of less common family types makes this a uniquely valuable survey for family research. In-person interviews were conducted with a randomly chosen adult over age 18. In addition, self-administered surveys were given to the respondent and to the spouse/partner. In the follow-up survey, brief interviews were completed with those who were focal children age 5 and over in the initial survey. Both focal children who had left the household and parents who had separated or divorced since the original survey were followed and inter- viewed. In addition, a parent of the main respondent was also interviewed in the follow-up survey. A limited amount of sociodemographic and behavioral information is gathered on every child in the household. In addition, there is a much more detailed set of age-appropriate questions asked concerning a randomly se- lected focal child. These questions cover a broad range of outcomes in the areas of health, social development, behavior problems, and cognitive achieve- ment. No direct assessments of the child were made in either wave of the survey, however. Focal children were ages 0-18 at the time of the first survey. Thus, while this dataset allows one to look at a child only at two time points, five years apart, it does allow one to analyze in detail the transitions between all adjacent developmental phases, including the transition to early adulthood. Information concerning a household’s material resources is very de- tailed, although the data refer primarily to the status of the household and its members at the time of the survey only. Income is identified by source, and in many cases according to the person who generated it. Questions are asked concerning income flows to and from extended kin and between ex- spouses. Family-process data are one of the great strengths of this survey owing to the breadth and the depth of information gathered. Exact relationships between the adult respondent, spouse/partner, and each of the children in the household are recorded, as are detailed marital and fertility histories of all adult respondents. Questions are asked concerning time spent and ac- tivities engaged in by the focal child and each parent (including noncustodial parents), rules, parent-child communication patterns and conflict. In addi- tion, there are many measures of the quality of the spousal relationship, including interspousal conflict, conflict resolution styles, violence, global marriage quality, and sharing of household duties. The CES-D depression scale is also administered to all primary adult respondents. Finally, there is a host of measures of social capital regarding the rela- tionship between adult respondents and extended kin, friends and neigh- bors, and community organizations such as the church, the PTA, and recre- ational, civic, political, and professional groups. Some county-level 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 67 sociodemographic and labor force characteristics are also included in the dataset. High School and Beyond High School and Beyond (HS&B) is a nationally representative longitu- dinal survey of high school sophomores and seniors begun in 1980, with biennial follow-ups through 1986. It has a two-stage sampling design. In the first stage, public and private high schools were chosen. The following school types were oversampled: alternative, high-performance private, His- panic, non-Catholic private, and black Catholic private. A total of 36 sopho- mores and 36 seniors from each school were included in the sample design (allowing for hierarchical linear modeling). A total of 30,030 sophomores and 28,240 seniors were interviewed in the first wave. A subsample of approximately one-half of the students was included in the 1982 through 1986 follow-up surveys. A 1992 follow-up of 1,300 sophomores was also conducted. Special files are available that allow one to link twins, siblings, and friends within the file. Questionnaires were filled out by students, school administrators, and up to four of the students’ teachers. Questionnaires were also filled out by parents of approximately 10 percent of the students. In addition, standard- ized test results are available for all students, as are complete high school transcripts for a large subsample of the sophomore cohort. For the 90 percent of the sample whose parents did not fill out a ques- tionnaire, data on family material resources are limited to a categorical income variable and a question on home ownership. The parent question- naire, however, provides data on parental income, assets, and expenses, as well as parental education and employment. Family-process measures in this survey include measures of parental aspirations and attitudes regarding secondary education for their child and financial planning for college. Such information, however, is available only for the 10 percent of the sample whose parents filled out questionnaires. In addition, all youth respondents are asked questions concerning the degree of parental supervision of homework and whether parents usually know where the youth is at any given time. Contextual data are limited primarily to the extensive information available on the high school. Data include enrollment, demographic breakdowns of both students and faculty, course offerings, participation in federal pro- grams, funding sources, school discipline problems, and grading systems. Local labor market indicators for the county or metropolitan area of resi- dence are also available. Finally, a “friends” file permits one to identify and link friends within the sample, which allows for the possibility of peer measures. 

68 INTEGRATING FEDERAL STATISTICS ON CHILDREN Child outcomes covered in this database include information on high school and postsecondary education measures, job training and employment history, fertility and marriage, and income. Job and employment data are arranged in an event-history format. Available cognitive test measures in- clude vocabulary, reading, mathematics, science, writing, and civic educa- tion. Data on educational aspirations, personal attitudes, and beliefs are also included. Consumer Expenditure Surveys Consumer Expenditure Surveys (CEX) collect detailed data on con- sumer expenditure patterns. The data are used to determine the need to revise the Consumer Price Index (CPI). There are two surveys, each with a sample size of 5,000. Each is a nationally representative sample of the U.S. noninstitutionalized population. In the CEX Quarterly Interview Survey, respondents are interviewed quarterly for a total of five quarters; they are asked to report major expenditures and those that occurred on a regular basis over the preceding quarter. Examples include rent or mortgage pay- ments, utility bills, and purchases of home appliances and furnishings. The survey is continuous, with one-fifth of the sample replaced each quarter. In the Diary Survey, respondents are asked to keep two one-week diaries in which they record smaller purchases (e.g., food, cleaning supplies, clothes). Information on material resources is detailed, covering the amount and sources of income, assets, and tenure, as well as participation in federal social welfare programs. This is by far the most detailed survey of spend- ing patterns collected on a representative national sample of families with children; however, family-process data are limited to spending patterns. There are no contextual measures. Data on children under age 14 are limited to age, race, Hispanic origin, sex, and exact relationship to the respondent. Employment data are gath- ered for all persons age 14 and older. National Crime Victimization Survey The National Crime Victimization Survey (NCVS) is designed to col- lect data on the incidence of crime as reported by the victims of crime. The survey is very large, covering approximately 100,000 people in 49,000 households. All persons ages 12 and older in the household are interviewed. Household members are interviewed every six months for three years, for a total of six interviews. The survey is continuous, with one-sixth of the sample replaced every six months. Households that move during the period of the survey are not followed. The sample is nationally representative. In addition, representative state-level data are available for the 21 most populous states. 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 69 Data on family material resources are limited to a measure of total family income. In addition, information on Medicaid and private health insurance coverage is obtained for those who visit the hospital as a result of an injury received during a crime. Family-process data are limited to the reporting of family violence that a respondent considers to be a crime (e.g., assault, rape) and is willing to report. State and region of residence are not identified in publicly available versions of the data file. Child outcome measures are limited to detailed reports of crimes that affect them (if they are 12 or older) or to their household (regardless of their age). This is nevertheless important and unique information on child well-being. Cross-Sectional Surveys Decennial Census, Public Use Micro-Sample The Public Use Micro-Sample (PUMS) is a large sample of households drawn from the 17 percent of the population that fills out the decennial census long form. The 5 Percent Sample, as it is called, includes detailed population and housing characteristics for over 15 million persons. A 1 Percent Sample version is also available. Data are available for the house- hold, for each family and subfamily within the household, and for each individual. Data on income are fairly detailed, with income reported by source and for each member of the household age 15 and older. Home ownership is also reported; assets and health insurance are not covered. There are no family process data gathered in the census. State and county group (census- defined constellations of contiguous counties) are identified, allowing for the possibility that state and county-group characteristics can be appended to the data. In 1970, a special “neighborhood file” was produced that included sociodemographic characteristics of the neighborhood of residence. Under special arrangement with the Census Bureau, a private researcher, Rebecca Clark, created a similar file using data from the 1980 census. For reasons of confidentiality, the latter file is not publicly available. For children under the age of 15, outcome data are limited to school enrollment. For those age 15 and older, measured outcomes include school enrollment and educational attainment, employment status and characteris- tics, income, welfare status, marital status, and whether they have a child of their own living with them. If there is a health condition that impedes employment, that is also recorded. 

70 INTEGRATING FEDERAL STATISTICS ON CHILDREN National Health Interview Survey—Child Health Supplement 1988 The National Health Interview Survey—Child Health Supplement 1988 was a special supplement to the National Health Interview Survey, an an- nual, cross-sectional, and nationally representative survey of the U.S. civil- ian, noninstitutionalized population. For this supplement, additional infor- mation was gathered for one child between the ages of 0 and 17 in every sample household containing children. A knowledgeable adult member of the household, most often the mother, served as proxy respondent for each selected child. The 1988 Child Health Supplement gathered data on 17,110 children. Black families are oversampled. A similar supplement was fielded in 1981. Family income data are limited to total family income and welfare status. In addition, health insurance coverage is also ascertained. Family process measures include child care arrangements, frequency of contact with absent parents, maternal marital history, and habits regarding seat belt use and the regularity of children’s bedtimes. Contextual data are limited to a history of residential moves. There are extensive data related to child health, including information on the child’s birth, recent accidents, injuries and poisonings, particular childhood conditions, chronic conditions, emotional and behavior problems (including a 28-item Behavior Problems Index), and use of health care ser- vices. There are, in addition, many useful outcome measures that are not directly related to health, including whether the child has repeated a grade, reasons for discontinuing school, and the presence of learning disabilities or developmental delays. The National Health Interview Survey is currently being redesigned. Current plans call for regular occasional supplements on child health. This redesigned survey is scheduled to be fielded starting around 1996. IMPROVING EXISTING SURVEYS We detail below changes in existing practices or new content in large national surveys that could significantly improve them. Before launching into survey-by-survey details, we begin with some generic procedural issues for surveys. Research on the development of children using existing data is greatly facilitated if the survey data are organized on a child-by-child basis. In terms of questionnaire construction, this means that questions should be designed to obtain information on each individual child, using questions that are developmentally appropriate. As simple as this advice may seem, it is remarkable how rarely it is followed. For example, in the SIPP: (1) Federal Food Breakfast Program and Federal School Lunch Program par- 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 71 ticipation information is not gathered on individual children; (2) child care information is asked only about the three youngest children; and (3) di- vorce/separation visitation data are gathered only on the oldest child if not all children have the same visitation schedule. This structure produces some bizarre data patterns on children when considered in a longitudinal context. For example, child care data would be collected on the oldest of three children, but not after the birth of a fourth child. The older of two children would have a longer time series that would cease if two younger siblings were born during the panel period. Undoubtedly, decisions to limit the number of children about whom such questions are asked are based on interviewing time constraints. How- ever, we believe that it is far better to have at least some information available on program participation, child care, visitation, and similar activi- ties for all children (and included in those children’s own data records) than to have details about only some of the children. If such data are collected on a grid, data collection time requirements are minimized. If time pres- sures preclude obtaining some data for all siblings, child age would repre- sent a better decision rule than using the three youngest as the criterion for some questions and other factors as the criterion for other questions. Alter- natively, a focal child or two focal children per family might be selected about whom detailed information will be consistently obtained. One hopes that computer-assisted interviewing methods will reduce the perceived need for such unfortunate restrictions, but there is little reason for them, regardless of the mode of interview. Question sequences about chil- dren should be constructed so that the questions are asked about all chil- dren for whom they are appropriate. Second, repeating a point made earlier, it is important to collect infor- mation on family relationships that allows researchers to classify families according to type (step or biological, for example) and to establish the relationships among all pairs of individuals in the household. Gathering information about each family member’s relationship to a reference person does not provide the needed information. One option, chosen by SIPP in some of its panels, is to enumerate a relationship matrix. Family members are listed down the rows and across the columns of the matrix, and the interviewer then establishes the relationship (e.g., biological parent vs. step- parent; sibling, half- or stepsibling; cousin) between each pair of individu- als. This option is somewhat cumbersome, especially in large families, particularly when computer-assisted personal interviewing (CAPI) is used. An alternative being developed by the Census for SIPP and the SPD, to be administered beginning in 1996, is to ask for relationship to the reference person as well as the identity (i.e., unique ID or listing line number) of each person’s mother and father if that parent is also present in the household. Additional questions allow one to identify biological, step, and adoptive 

72 INTEGRATING FEDERAL STATISTICS ON CHILDREN parent-child relationships and to identify virtually all remaining pair rela- tionships within the household. Third, child-centered analyses are facilitated by the release of data files in which separate records exist for each individual child or in which the data can easily be transformed into child-specific record form. In the case of a survey such as SIPP, this should be true regardless of whether the child was actually given his or her own interview. The medium increasingly preferred by analysts is CD-ROM. Retrieval software on the CDs is also desirable; the CD-ROMs prepared for the NLSY provide a model here. Fourth, longitudinal studies based on families or households should develop rules for following individuals that properly track the experiences of all children. In both the PSID and SIPP, for example, the samples are defined to include individuals who were present in wave-1 households as well as births to individuals who were present in wave-1 households. Al- though minor children are properly part of the sample in both studies, fol- lowing the rules in SIPP and, until recently, in the PSID did not provide for minor children to be followed if they moved to a household that did not contain at least one adult sample member. This procedure is clearly a mistake because it throws away the opportunity to track a relatively small but very important group of children who live in a variety of family struc- tures during childhood. We know next to nothing about how frequent such occurrences are or about the developmental consequences of such arrange- ments. We now turn to a survey-by-survey list. Consumer Expenditure Surveys The CEX provides a wealth of detail about household expenditures. With a few additions it could become an invaluable source of information for opening up the black box of intrafamily resources allocation. We make a number of suggestions to improve the organization of exist- ing information in the CEX: 1. Collect better information on family relationships. It is crucial to know how children are related to all of the adults in the household, because analysts will want to be able to link the incomes of those persons with the expenditures for the children. The existing family relationship information should be supplemented by asking for the household-listing line number of the natural father or mother of each household member. It would also be desirable to ascertain whether children share the same biological absent parent (for a more detailed discussion, see the recommendations for the decennial census listed below). 2. Identify state of residence for as many states as possible. 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 73 3. Attach census tract data to each record and offer the data on a re- stricted basis. Purchases of neighborhood inputs through choice of resi- dence are among the most important ways that parents spend money on their children. 4. The Bureau of Labor Statistics should consider creating a special child subfile to facilitate research on children. Such a file would include expenditure data on children and basic family demographic and socioeco- nomic data; it would include identifiers allowing researchers to easily link child records with the more complete family records in the larger CEX data file. 5. Make the data available on CD-ROM with good documentation and provide a program to facilitate data extraction such as that currently avail- able for the NLSY. Suggestions for low-marginal-cost additions to the data include: 1. Collect greater detail on child care expenditures. The CEX currently collects great detail on many expenditure categories but has only a single question about child care expenditures. Some details on the type of child care services that were purchased would be desirable. 2. Collect additional data on expenditures explicitly made for children. At present, expenditures on clothing are about the only such data in the survey. Additional measures might include expenditures on education (e.g., private tuition, books, classes in art, sports, and other special classes), camps, computers, and expenditures on outings, for example, to the zoo, museum, and concerts. 3. For expenditures on clothing, establish the identity of the person for whom the clothing was purchased. Most expenditures families make ben- efit several family members at the same time. An exception is clothing, because most clothing is purchased for an individual member, even though some of it may find its way to the wardrobes of other family members. Thus, clothing expenditures constitute a promising indicator of a family’s intrafamily resource allocations. The Decennial Census Although cross-sectional and limited to what can be collected on a self- enumerated form, data from the decennial census have been used for a surprising number of developmental studies. Interesting developmental mea- sures include the school and fertility status of adolescents as well as the economic and demographic characteristics of the families in which children live. Most important, of course, is the fact that the PUMS file contains massive case counts. Researchers have exploited this feature by construct- 

74 INTEGRATING FEDERAL STATISTICS ON CHILDREN ing samples of very rare populations, such as twins or immigrants from different countries or regions. It would be presumptuous to believe that child development consider- ations should dictate substantial changes to the census form. However, we would be remiss if we failed to propose a useful change in the way that the census form collects its household relationship data: 1. The information on household-composition collected in the census derives from the identification of the householder (the household member in whose name the dwelling is owned or rented), a listing of all other house- hold members, and the following question for each household member: “How is this person related to PERSON 1 [i.e, the householder]?” Response categories include: (a) husband/wife; (b) natural-born or adopted son/daughter; (c) stepson/stepdaughter; (d) brother/sister; (e) father/mother; (f) grandchild; (g) other relative (specify); (h) roomer, boarder, or foster child; (i) housemate, roommate; (j) unmarried partner; (k) other nonrelative. This information could be supplemented on the long form with questions establishing whether the individual’s natural father or mother live in the household and, if so, who that person is. This could be done by asking for the household-listing line number of the natural father or mother of each household member. It would also be desirable to ascertain whether children share the same bio- logical absent parent. 2. The Census Bureau should consider restoring the marital history question, which was eliminated from the 1990 census. 3. Because the census asks only about completed schooling, it is not possible to identify children who are enrolled in but have not completed preschool. Rewording the question would allow for such identification. 4. The Census Bureau should consider producing a matched file with family and neighborhood-level data from the 1990 census that is compa- rable to similar files produced for 1970 or 1980. A publicly available file such as that produced with the 1970 data would be clearly preferable, but it would be also considerably more expensive to produce because it involves generating new neighborhood-level data rather than using data from identi- fiable census tracts. A less expensive alternative would be for the Census Bureau to create a file that simply matches existing tract data to household records and make it available to researchers on a restricted basis. 5. The Census Bureau should consider creating family-level records in addition to household and person records for their PUMS microdata files, as is currently done for the Current Population Survey. The National Crime Victimization Survey The National Crime Victimization Survey is one of the largest ongoing surveys carried out by the federal government. Its information on crime 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 75 victimization makes it a uniquely valuable resource for researching the well- being of adolescents and young adults (children below age 12 are not inter- viewed). There are a number of changes that would greatly enhance the value of this underutilized data set for scholarly research. We make one suggestion to improve the organization of existing infor- mation for this survey: 1. Continue to create longitudinal files containing data on all seven interviews over the three-year period during which households participate. At present there is only one such file available for surveys having taken place in the period 1987-1990. Suggestions for low-marginal-cost additions to the data include: 1. Expand the income and demographic data collected on all members of the household, which are currently minimal in this survey. Such im- provements would include more detailed income and employment data, iden- tification of the exact relationships among all respondents in the household, an expanded Hispanic-origin question to allow for the separate identifica- tion of major Hispanic subgroups, and welfare receipt. Data for children under the age of 12 (currently limited to age, sex, race, and national origin) should be expanded to include exact relationship to adults in the household and the grade in which they are currently enrolled. 2. Append state identifiers and tract-level census data to each record and make the resulting file available on a restricted basis. State laws and neighborhood conditions are of particular interest to those who study crime. At present, neither state nor region of residence is identified on the public file out of concern that victims may be identifiable because of the rarity of some crimes. 3. Ask follow-up questions concerning the disposition of crimes re- ported in previous waves; at present they are not. This would enhance the utility of the crime data substantially. Suggestions for higher-cost additions to the data include: 1. Follow families who move out of the household. Currently, data for all seven waves of the survey are available only for those who do not change their place of residence. The Bureau of Justice Statistics has been considering doing this for some time and is monitoring the experience of the SIPP survey, which does follow families. 2. Gather data on the criminal victimization of children under age 12. The physical and sexual abuse of young children is far too common and too important to be ignored in a major survey of crime victimization. We realize that there are many problems in gathering accurate data of this sort 

76 INTEGRATING FEDERAL STATISTICS ON CHILDREN for children under age 12, particularly in the context of a telephone inter- view. Serious thought should be given to a special module on the victim- ization of children under age 12, to be administered in the home to a large subsample. Alternatively, it may be useful to ask retrospective questions of respondents ages 12-17 about incidences of assault or abuse at earlier ages. National Educational Longitudinal Survey of 1988 The NELS88 survey contains many of the characteristics that we have identified as desirable for a dataset to study child and adolescent develop- ment. Parents, teachers, administrators, and the students themselves are all interviewed. Detailed information on school and neighborhood characteris- tics is available. The respondents are interviewed regularly over the course of their transition from adolescence to early adulthood. A number of improvements could have been made to this survey earlier on (for example, the fielding of a parent questionnaire for the 1990 and 1994 waves, more detailed family income and process measures). At present, the main opportunity for improvement would be to discard current plans to skip the 1996 wave, which will leave a four-year gap between the third and fourth waves of the survey. This four-year spacing between interviews during what is for most youth the key transition period to adulthood (ages 20-24) substantially weakens this dataset for studying the transition to adulthood in general and the school-to-work transition in particular. Reinstating the 1996 wave would be highly desirable. We have been informed by Depart- ment of Education personnel working on this survey that, at this late date, intervention by the secretary of education would be required to reinstate the 1996 wave. Recognizing that there are substantial financial constraints involved, we would therefore propose that a telephone survey be considered for a 1996 wave. In addition, it would be desirable for the current survey to be continued in some form until at least the year 2002, when respondents will have reached approximately 28 years of age. Many adult attainment measures, particularly earnings and work patterns, do not stabilize until that age. It is important that researchers be able to relate the rich information available in this dataset to stable and long-term adult socioeconomic outcomes. National Longitudinal Survey of Youth (1979 Cohort) In 1994, respondents in this survey ranged in age from 29 to 36. It is important that this cohort continue to be followed, at least for the next 5 to 10 years in order to continue to track important developments in fertility, earnings, and other important adult outcomes. Given financial constraints and problems associated with the accuracy of retrospective data, continua- 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 77 tion of the NLSY as an annual survey would have been preferable, switch- ing to telephone administration to save costs. However, given that the decision to move to a biennial format has already been made, we agree with current plans to continue with in-person interviews. National Longitudinal Survey of Youth—Child-Mother Data The child mother data supplements to the NLSY have proved very useful to policy scholars in child development, economics, sociology and demography (Brooks-Gunn et al., 1991). They could be enhanced by a number of relatively low-cost additions: 1. Augment information on parental relationships. It is difficult to determine the relationship between each child in a home and a residential father. Likewise, more information should be collected on noncustodial fathers about child support (financial, time, and psychological) as well as conflicts (also financial, time, and psychological) between the parents about the child. 2. Add more detail on the adolescent years as children of the NLSY age, paralleling what is known about the mothers during their own adoles- cent years. 3. Add more detailed information on mental and emotional health, collected from teachers, child, and mother (supplementing existing ques- tions). 4. When these children reach their early twenties, data could be col- lected by telephone to reduce costs, with only occasional in-depth personal interviews. There were plans to interview the teachers of children of the NLSY. It is our understanding that the Bureau of Labor Statistics discarded these plans out of concern that teachers would be able to look up sensitive infor- mation on one of their students and their parents. A number of federally collected or sponsored datasets have managed to collect sensitive parent and child data and conduct teacher interviews without experiencing confi- dentiality problems, including the National Educational Longitudinal Sur- vey of 1988 and the National Survey of Children. We urge the bureau to develop ways in which teacher data could become part of NLSY data col- lection. National Longitudinal Survey of Youth—A New Cohort? It appears that the Bureau of Labor Statistics has secured funding for a new set of NLSY cohorts. Since the 1979 NLSY cohorts have proved to be 

78 INTEGRATING FEDERAL STATISTICS ON CHILDREN such a valuable source of data for developmental studies, we offer some suggestions about the design of the new panel. Although data collected from the adolescents ages 14-21 who consti- tuted the 1979 panel have also been used for many developmental studies of individuals in late adolescence and early adulthood, the 14-21 range is far from optimal for such studies. A key problem is the lack of arguably “exogenous” information for the period prior to the time when outcomes are assessed. Many of the processes that affect adolescent development begin in early adolescence or before. Owing to limits on the accuracy of retro- spective recall, concurrent data collected from, say, a cohort of 19-year-olds will have little of the rich parental background information available from individuals in a younger age range initially observed while they were still living with their parents. Data on attitudes and expectations of the youth are also problematic, since, if gathered for the first time from 19-year-olds, such data reflect the influence of endogenous decisions already taken by the youth. If, for example, age 16 is considered to be the point at which major decisions regarding schooling and fertility are first taken, then the 14-21 age span provides only two cohorts—age 14 and age 15—for causal analy- ses. (Indeed, a number of analyses of teenage fertility have limited their samples in precisely this way.) Thus, starting with a younger age range would increase the sample size for causal modeling of school, family, and work transitions in youth and early adulthood. From the perspective of sibling-based analyses, an initial sample that includes ages older than about 18 introduces a problematic set of possible biases. Although some 18-year-olds live in their own households, most still live with their parent(s). Data on independent 18-year-olds living on their own will not be accompanied by observations on younger siblings in the chosen age range since those younger sibling will, by and large, still be living with parents. (It would be possible to find the parental families and interview such siblings, but that would be expensive.) Also, 18-year-olds regardless of living arrangements are unlikely to have older siblings still living with them. The younger the age range, the less severe are these possible problems. We view sibling-based problems in the NLS samples as important, since sibling observations are a great strength of the data set, and we predict that growing numbers of analysts will rely on the natural experiments inherent in sibling comparisons to control for heterogeneous family effects. Coinci- dentally, sibling observations are also much cheaper than observations on children in separate families, since only one set of parental data needs to be gathered and it often takes only one personal visit from an interviewer to gather the necessary information from all siblings. Our proposal for a new sample maximizes the number of sibling observations. 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 79 These considerations argue for a younger age range in the new NLS, with an upper age limit of 17-18 and beginning at age 12 or younger. The Bureau of Labor Statistics and the National Institute for Child Health and Human Development should seriously consider combining the need for a younger NLS age cohort with the need for a new national survey of children (discussed below) by combining the samples into a single, dwelling-based sampling frame. Detailed longitudinal information should be gathered on two of the children, with some information gathered on all children in the household. This would result in a large, nationally representative sample of children ages 0 through 18. The combined sample would represent a very broad age range, be clustered within families to reduce interviewing costs, provide abundant observations on siblings, and provide data from a “whole child” perspective. Such a survey should be conducted on an annual basis; to reduce costs, a personal interview could be conducted every two years, with telephone interviews in between. National Survey of Families and Households The NSFH offers the most comprehensive picture of the American fam- ily available in ongoing federal surveys. Information on material resources, family processes, family relationships, and nonresident kin is particularly rich. We make a number of suggestions to improve the organization of exist- ing data: 1. Release data from the second wave on CD-ROM as soon as the data are ready for public distribution. Current plans call for distributing the data on CD-ROM one year after the initial release of the data on 9-track tape. We believe that this unnecessarily restricts early access to this very rich data set. When errors have been reported and corrected over the course of the first year, a corrected CD can be produced and distributed at little additional cost. 2. Offer with the CD-ROM a customized data extraction program simi- lar to that already available for the NLSY. Although there are fewer waves of data, the records for this data set are very complex, particularly for the second wave. This is a moderately costly undertaking, but it would enhance the accessibility of the data significantly. Suggestions for low-marginal-cost additions to the data include: 1. Append tract-level data for place of residence and offer the resulting file on a restricted basis. Although there are important confidentiality is- sues here, a similar arrangement currently exists for data from the PSID. 

80 INTEGRATING FEDERAL STATISTICS ON CHILDREN The high quality of the family-level data in the NSFH makes tract-level data even more valuable. 2. If a third wave of data is collected, make arrangements to append social security earnings data to the files. This was attempted in the second wave; subsequently, however, Social Security personnel declined to allow the records search. Since such arrangements have been worked out for the Health and Retirement Survey, it would be worthwhile to reexamine this issue for the third wave. One suggestion for a higher-cost addition to the data is as follows: 1. Collect a third wave of data in 1997-1998. This would offer three data points over a 10-year period covering a variety of developmental peri- ods for children. The National Survey of Children, which had three waves also spaced five years apart, has been the basis for important research on child well-being from a developmental perspective. Every effort should be made to maintain the highest response rate possible for a third wave. National Health Interview Survey—Child Health Supplement The large sample size of the National Health Interview Survey makes it an important source of data about American children. However, the breadth of data available regarding the physical and mental health of children and their families, particularly regarding the factors that enhance or undermine the development of children, has been minimal. The augmented informa- tion about children provided by the 1981 and 1988 Child Health Supple- ments made the NHIS far more useful for understanding the occurrence of such conditions as behavior problems, chronic health conditions, and acci- dental injuries, as well as aspects of the child’s environment related to health such as child care, school adjustment, and academic success. Data from the Child Health Supplements to the NHIS have been extensively used by researchers and provide the beginning points for time-series data analy- sis, if a new supplement is implemented in the next several years. The National Health Interview Survey is currently undergoing a sub- stantial redesign. Redesign plans call for an annual core survey to be supple- mented by both periodic and occasional supplements on special topics. Current plans call for a special child supplement to be carried out in 1996 if addi- tional funds can be secured, a matter that will be settled soon. If funding is not forthcoming at this time, it would be preferable to reschedule the child supplement rather than drop it. For the design of the supplement, adding siblings to the sample would increase the sample size and provide for sibling analyses. In addition, data collection from teenagers themselves would enable information to be ob- 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 81 tained on topics about which parents are poorly informed, such as the sub- stance use and sexual activity of their adolescent children. Information on family processes should also be obtained, particularly those that affect a range of health outcomes, such as the health-related behaviors of children, treatment obtained for health conditions, the preven- tive health care obtained for children, the risk-taking of children, and the differences in health status and behavior across children in a family. In addition, it is important to collect sociodemographic information specific to the children for whom health data are being collected, such as the exact biological relationship between the child and the parents in the home, con- tact with the absent parent, insurance coverage for the child including cov- erage provided by an absent parent, and any transfer income or child sup- port payments made on behalf of that child. The National Center for Health Statistics should adopt questions that will allow researchers to identify exact relationships between each child and their parent(s) within the household (i.e., natural, step, adoptive), both in the occasional child supplement and in the annual core survey. The Na- tional Center for Health Statistics has plans to test the relationship matrix used in SIPP, but it has tentatively decided to use a less rigorous set of relationship questions out of concern that the SIPP matrix is too cumber- some. The Panel Study of Income Dynamics has adopted an approach that identifies for each child the survey line number of each parent in the house- hold and their exact relationship. From this information, exact relationships between each child and all other household members can be unambiguously constructed in most cases. Finally, if funding were made available to conduct longitudinal data collection based on the child supplement, prospective analyses of the fac- tors that lead to improvements or declines in health-related behavior, acci- dents, illness, and risk-taking could be carried out. Panel Study of Income Dynamics The PSID has gathered more than 25 years of data on the family and neighborhood environments of its representative sample of children and adolescents, most of whom have been observed since birth. No other data source comes close to assembling such a high-quality longitudinal time series on family and neighborhood resources. Lacking in the PSID, how- ever, are outcome measures on children prior to age 16. Also lacking are family-process measures. We make two suggestions to improve the organization of existing infor- mation in the PSID: 1. Extend to the current interviewing wave the “relationship file” that 

82 INTEGRATING FEDERAL STATISTICS ON CHILDREN the PSID has constructed for the years 1968-1985, showing year-by-year pairwise relationships and coresidential status of all pairs of individuals associated with the same original wave-1 family. 2. Develop and make available at minimal cost retrieval software that enables analysts to assemble data subsets and codebooks easily. Although the PSID data are now routinely released on CD-ROM, such software does not exist. Suggestions for low-marginal-cost additions to the data include: 1. Addition a supplement to the regular telephone interview with par- ents, asking for outcome measures such as grade failure and behavior prob- lems on the part of their children. Our suggestion for higher-cost additions to the data is as follows: 1. Incorporate an NLSY-type personal interview to be conducted with all PSID families with children, in which the cognitive abilities of children and mothers would be tested, behavior problem reports on the children would be gathered from the mothers, and time-use activities would be re- ported by the mothers (in the case of younger children) or by the children themselves (in the case of older children and adolescents). Survey of Income and Program Participation The unique strength of SIPP lies in its rich and detailed recording of data on income and program participation. For analyses of the development of children, however, SIPP currently provides very limited information. To conduct causal analyses of child well-being, data are needed on child out- comes and on the family processes that translate resources into child out- comes. In addition, a broader array of resources needs to be measured than the set of income and program participation measures currently available. In terms of child outcomes, at present children’s health and educational attainment are the only outcomes available for study. It is proposed that measures of children’s cognitive development and behavior be obtained in the Survey of Program Dynamics (the extended panel planned to follow the 1993 SIPP sample through the year 2002). With the addition of a broader array of child outcomes and family resources, combined with a longitudinal design, multivariate causal analyses can be conducted to examine how var- ied types of investments translate into attainment. That is, researchers and policy makers can assess the independent and interdependent effects of income by source, program participation, and family influences on children’s education, employment, income, and family formation through childhood 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 83 and into the early to mid-twenties. Moreover, it will be possible not only to extend the time period during which child outcomes are assessed, but also to expand the range of the independent variables that are examined. For example, beyond point-in-time or short-term estimates of welfare receipt or poverty, the implications of spending many years on welfare or in poverty can be compared with the implications of a brief spell of welfare receipt or poverty. Examining income and program participation longitudinally represents an important expansion in research potential. Beyond this, an expansion in the range of resources measured is also needed. The only resources that are currently measured in SIPP are financial resources and human capital. Time inputs, the parents’ psychological resources, and social capital resources in the community are not currently measured. In the absence of measures of these constructs, the only factors that can be examined as determinants of children’s development and well-being are measures of income, program participation, and the structural characteristics of the family, such as family size and the number of parents present. The absence of a full set of re- source measures can lead to erroneous conclusions about the role of these factors. For example, knowing only about income without knowing about the time parents spend interacting with their children could lead to an in- flated assessment of the importance of money relative to other family in- puts. However, even with rich data on resources and child outcomes, there remains a gap in SIPP with regard to information on those family and community processes through which resources affect children’s develop- ment, for example, family processes such as monitoring, communication, discipline, teaching, modeling of work, substance use, and marital behav- iors. Addition of measures of these constructs would add immeasurably to SIPP in that the linkages through which poverty and program services affect children could be explored. The addition of contextual information about the census tract of resi- dence would also add to the utility of this data base, as is true for most national surveys. Despite its many strengths, one disadvantage of SIPP is the relatively small sample size. Efforts to minimize attrition and to follow any children who leave the household are essential. Also, expansion of the sample size to 50,000, as currently planned, will enhance the utility of SIPP for the study of children. Given the rich longitudinal information already being collected with SIPP on income and program participation, the incremental cost involved in adding measures of child outcomes, family processes, time inputs, and so- cial capital is modest relative to the base cost of fielding SIPP. The incre- mental information will be extremely valuable for developmental research. 

84 INTEGRATING FEDERAL STATISTICS ON CHILDREN A NEW SURVEY OF CHILD AND ADOLESCENT DEVELOPMENT? Taken as a whole, our list of proposed additions to the many national data collection projects we review is long and expensive. Unfortunately, available funds are probably insufficient to support all of these augmenta- tions and also fund a new national survey of children. Accordingly, it is also important to consider whether it would be better to allocate resources in a piecemeal fashion across existing surveys or to attempt to pool those resources and spend a substantial fraction of them on a new survey focused exclusively on child and adolescent development. Our suggestions for no-cost and low-cost additions to existing surveys are clearly our top priority. However, considering the trade-offs between the high-cost additions to existing surveys that we consider and the fielding of a new survey of child and adolescent development, in our judgment a new survey is the best use of available resources. The primary reason for this conclusion is that, although many of the existing datasets are likely to provide very valuable information on child development, these existing studies were either designed for other purposes or are designed too narrowly to serve as a general resource for research on children. Specifically, among the overtly developmental data sets: (1) none of the NCES datasets covers the important period between birth and the beginning of school; none provides comprehensive data on siblings; and all are fo- cused on very narrow cohort ranges; (2) the NLSY-Child-Mother supple- ment sample never represents a well-defined population of children in any given year and will not represent certain subgroups (e.g., adolescents born to older mothers) for more than a decade; and the NLSY Hispanic subsample is no longer representative due to heavy in-migration since 1979; (3) SIPP’s proposed supplements on child development are ambitious, but the total amount of interviewing time available in the SIPP survey, focused as it is on income and program participation, will never be enough to provide com- prehensive measures of outcomes and family process. Also, Census Bureau restrictions on data release make it difficult to add and analyze important contextual information, and the agency’s perspective regarding the gather- ing of sensitive but important outcome and process measures unduly re- stricts survey content. Also, most databases funded by a given federal department necessarily (and understandably) tend to emphasize the topics and processes of concern to that department. Yet what is needed is a data collection effort focused on the “whole child,” that is, a survey that obtains information on multiple domains of well-being and factors that contribute to development across these domains. 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 85 Our list of important design features of a new study of child and adoles- cent development includes the following: 1. A new national survey of children should be longitudinal, with inter- views at least every other year (and, if possible, every year), an initial personal interview, and regular subsequent personal interviews aimed at gathering high-quality developmental data. 2. It should contain a national probability sample of at least 30,000 children under age 18 and expectant parents, with oversampling among blacks and Hispanics, probably drawn from a dwelling-based sampling frame.9 Asians should also be oversampled if resources permit, although their level of geographic dispersion makes oversampling relatively more expensive. A case count of 30,000 children amounts to roughly 1,500 cases per single year of age. The longitudinal nature of the file will produce a steady flow of new cases into a given age range each year; after five years, for example, roughly 7,500 children will have been observed making the transition into school. Included in the sample should be institutionalized children who would oth- erwise reside in the sampled dwelling. All children should be followed regardless of subsequent institutional status or living arrangements. Proxy information should be gathered on all older siblings of sample children. We have considered several options for drawing the sample for such a survey, each with its own advantages. One option for this survey is to draw a fresh sample of 30,000 children. A second option is to take all PSID children under age 18 and augment them to bring the total sample to 30,000. The PSID sample would supply approximately one-fourth of the total sample. The second option offers the advantage that longitudinal data from the PSID could be merged with the new survey data for the PSID portion of the sample, significantly enhancing its value for research. A third option, dis- cussed earlier, is to expand the age range of a new NLS cohort to cover all children younger than (or including) age 18, with BLS funding data collec- tion on adolescents and data collection among younger children funded by another agency or agencies.10 A fourth option is to build on SIPP’s plan to add child development data to its 10-year Survey of Program Dynamics sample. Some 14,000 children could come from this source, with the SIPP core and supplemental questions providing many of the measures we advocate. Although the Cen- sus Bureau has shown an increasing willingness to consider questions on child development topics, its attitude regarding the gathering of the sorts of potentially sensitive information that must be part of any new survey of child and adolescent development prevents us from recommending SIPP as the preferred vehicle for such a survey at this time. This in no way reflects 

86 INTEGRATING FEDERAL STATISTICS ON CHILDREN on the value of adding regular child modules to SIPP or the SPD, however. We heartily endorse the value of the SPD and of making child development an important focus of SIPP and the SPD. 3. At least some developmental and family-process data should be col- lected on all children, including very young ones. For time-consuming outcome measures in households with three or more children, 2 siblings should be randomly selected, with oversampling of twins. Information should be gathered about all important domains, with a sufficient number of ques- tions within each domain to ensure reliability of measurement, but no single domain consuming a disproportionate share of interviewing time. 4. Parents should be asked for their permission to conduct periodic teacher interviews and to gather social security earnings histories. 5. The design should include interviews from multiple informants, in- cluding parents, children, and teachers. Interviewer observation data should also be included. 6. Neighborhood information from the most recent census should be matched to the family-level survey data. 7. A new set of cohorts should be initiated at least every decade. At a minimum, the new cohorts should be chosen to represent children born since the initial wave of the survey. Sibling-based studies would profit from a somewhat more complicated design, in which newly born siblings of original sample children are added at birth, and the fresh cohort selection should be designed to overrepresent newborns without siblings in the original cohort range. Alternatively, one may wish to opt for a continuous survey design, with a new cohort of newborns added each year. 8. Some consideration should be given to the possibility of adding on community-based intensive or observational studies of comparable samples of children. The national survey would provide the quantitative instruments and other procedures; local samples could supplement these data with richer process and contextual data. 9. There should be a vigorous competition for design and field work among coalitions of researchers and survey organizations, both private and public. The process by which the Health and Retirement Survey was begun could serve as a model for this process. Ideally, resources for studying children and families would be available to fully augment existing surveys and for fielding a new national survey of children. If sufficient resources are not available to meet both of these goals, we would give priority to the low- and moderate-cost augmentations we have outlined and dropping some or all of the high-cost augmentations in favor of a new national survey of children as described above. The actual costs associated with each of these proposals should be estimated to facilitate future decision making on these issues. 

CHILD DEVELOPMENT AND FAMILY AND COMMUNITY RESOURCES 87 ACKNOWLEDGMENTS The authors shared equally in the preparation of this paper and are listed in alphabetical order. Work on the paper was supported by the workshop’s sponsors and by the National Institute of Child Health and Human Development’s Family and Child Well-Being Research Network, of which Brooks-Gunn, Duncan, and Moore are members. Two of the authors are affiliated with datasets reviewed in this paper: Moore with the National Survey of Chil- dren and Duncan with the Panel Study of Income Dynamics. In addition, Child Trends, Inc., and Brooks-Gunn are part of a consortium of organiza- tions that have bid to design the Department of Education’s Early Child- hood Longitudinal Survey. In writing this paper we have drawn freely upon a number of earlier efforts: Moore et al. (1994), Haveman and Wolfe (1994), Moore (1993), Watts and Hernandez (1982), Zill (1989), and Zill et al. (1984). We are indebted to Deborah Phillips for helping us conceptualize our task and to helpful comments from Don Hernandez, Gary Sandefur, Terry Adams, Dor- othy Duncan, Valerie Lee, Susan Mayer, Robert Moffitt, Bruce Taylor, Diane Hansen, Dennis Carol, Susan Mayer, Jennifer Maddens, Michael Pergamit, Felicia LeClere, and the NICHD Research Network on Family and Child Well-Being. NOTES 1. There are several exciting new federal data collection efforts, currently in the planning stages, that are not reviewed in this paper. The Department of Educa- tion intends to fund an Early Childhood Longitudinal Educational Study. This is to be a large, school-based, nationally representative, longitudinal survey of kindergar- ten children. A second effort, recently funded by the National Institute of Child Health and Human Development, is a National Longitudinal Study of Adolescent Health. This survey has as its goal to provide a better understanding of the complex forces that promote good health and those that increase risk among the nation’s adolescents. 2. Randomized trials allow for an estimation of the effects of a particular treatment, in this case a family or community resource. However, in many cases involving federal or state programs, it is impossible to conduct randomized trials (see, for example, the paucity of such research in the literature on Head Start and the Supplemental Food Program for Women, Infants, and Children; McKey, 1985; Zigler and Muenchow, 1992; Lee et al., 1990; Rush et al., 1980). In addition, when community-level resources are the target of intervention, randomized trials are often not appropriate (i.e., randomizing communities is difficult, since the sample size is based on communities, not individuals, and communities are usually not comparable on all the possible dimensions of interest). 3. In an analysis of the determinants of cognitive test scores of 3-7-year-olds, Moore and Snyder found that mother’s education and poverty status were not sig- 

88 INTEGRATING FEDERAL STATISTICS ON CHILDREN nificant predictors once controls for mother’s score on the Armed Forces Qualifica- tion Test and measures of the home environment (as measured by the HOME scale), which were highly significant, were included. 4. Both Brooks-Gunn et al. (1993a) and Clark (1993) find that measures of affluent neighbors are more important than measures of low-income neighbors. Crane (1991) interprets his neighborhood measure (the percentage of workers in profes- sional or managerial occupations) in terms of epidemic models, but it clearly mea- sures the presence or absence of affluent neighbors. In one exception, Brown (1990), using the 1970 U.S. Census Neighborhood PUMS file, found evidence consistent with an “underclass neighborhood” or epidemic hypothesis for both white and black females when looking at teen nonmarital births and for white females when looking at high school completion. Evidence for white and black males regarding high school completion and idleness was not consistent with such hypotheses, however. 5. It is considerably more expensive to geocode addresses beyond wave 1 in longitudinal studies, since address matching would be involved and it is impossible to match addresses to census geocodes without at least some tedious map work. There would be substantial value in this additional geocoding. But the greatest value, especially given its low cost, would be in geocoding the wave 1 addresses and matching STF3 census data to these addresses. 6. One valuable piece of neighborhood information that could be distributed more widely is a scrambled version of the tract/BNA identifier. Clustered samples typically select several families per block (or adjacent blocks). It is analytically very useful to be able to sort children into groups—(1) same family (i.e., siblings), same neighborhood; (2) different family, same neighborhood; and (3) different family, different neighborhood—even if the actual characteristics of the neighborhoods are not known. These groups form the basis of an analysis-of-variance type of account- ing of family and neighborhood effects. To perform this kind of analysis, one need not know any of the actual characteristics of the neighborhoods, but only whether survey families share the same neighborhood. Although this analysis-of-variance accounting capability would be quite useful analytically, it is less valuable than and no substitute for the actual decennial census measures matched to the family- and individual-level survey data. 7. An example of the importance of studying different family structures as well as the processes within families is the well-documented fact that the movement from a traditional family structure to a single-parent structure (divorce) results in less optimal functioning across domains. However, the effect is not just due to a single-parent household, in that remarriage, and the entrance of a stepparent, do not alter substantially the well-being of children (Hetherington, 1993; McLanahan et al., 1991; Garfinkel and McLanahan, 1986; Kiernan, 1992). 8. For more detailed descriptions of each survey, consult Child Trends (1993). 9. Possible national sampling frames include census-based dwellings and list- based schools. The former provides national samples of noninstitutionalized fami- lies and children; the latter national samples of school-age children. The former clusters children within neighborhoods and families; the latter within schools. As already noted, clustering provides analytic advantages in the form of sibling, neigh- bor, and classmate comparisons. Choice of sampling frame depends on the value of covering preschool children (which is part of dwelling but not school-based frames) 

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