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OCR for page 302
APPENDIXES
302
Appendix 4-1
Distribution of Undergraduate Course Load for Faculty by Gender and Discipline
Two statistical tests were carried out. First, a chi-square test of independence of rows was
applied to determine whether the pattern of the number of undergraduate courses taught24 by
men and women differed. (These tests were either on three or four degrees of freedom.) The
tests were not significant at the .05 level except for Electrical Engineering. It is important to
mention that one could have different patterns without having women teach more of fewer
courses. For instance, men might teach 1 or 2 courses more often than women do, who in turn
might teach 0 or 3 courses more often, but where the mean number of courses remained close.
Therefore, we added a simple two-sample t-test of the average number of courses for men
and women. The means are displayed below for each of the disciplinary areas. The t-tests were
all not significant at the .05 for the null hypothesis of no difference, again except for Electrical
Engineering. It is clear from the table that men teach more undergraduate courses than women
do.
BIOLOGY
Courses 0 1 2 3 4 Total
Taught
Men 31 55 12 2 0 100
Women 31 58 11 2 2 104
Total 62 113 23 4 2 204
Chi-squared test of independence: 2.05 (4 degrees of freedom), p-value 0.73
Means Men .85 vs. Women .90, t-test is equal to -0.51 p-value 0.61
CHEMISTRY
Courses 0 1 2 3 Total
Taught
Men 43 49 8 1 101
Women 43 48 4 2 97
Total 86 97 12 3 198
Chi-squared test of independence: 1.60 (3 degrees of freedom), p-value 0.66
Means Men .67 vs. Women .64, t-test is equal to 0.36 p-value 0.72
24
Fractional courses were rounded up to the nearest integral number of courses. Missing data was removed from
the data prior to analysis. Finally, the data were from the committee’s survey of faculty.
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APPENDIXES 303
MATHEMATICS
Courses 0 1 2 3 Total
Taught
Men 21 30 15 2 68
Women 22 38 24 0 84
Total 43 68 39 2 152
Chi-squared test of independence: 3.39 (3 degrees of freedom), p-value 0.33
Means Men .97 vs. Women 1.02, t-test is equal to -0.42 p-value 0.68
ELECTRICAL ENGINEERING
Courses 0 1 2 3 Total
Taught
Men 33 46 14 1 94
Women 44 41 4 2 91
Total 77 87 18 3 185
Chi-squared test of independence: 7.70 (3 degrees of freedom), p-value 0.05
Means Men .82 vs. Women .60, t-test is equal to 2.09 p-value 0.04
PHYSICS
Courses 0 1 2 3 Total
Taught
Men 33 53 9 0 95
Women 31 66 14 1 112
Total 64 119 23 1 207
Chi-squared test of independence: 2.19 (3 degrees of freedom), p-value 0.53
Means Men .75 vs. Women .87, t-test is equal to -1.34 p-value 0.18
CIVIL ENGINEERING
Courses 0 1 2 3 4 Total
Taught
Men 22 44 13 4 0 83
Women 36 67 13 3 1 120
Total 58 111 26 7 1 203
Chi-squared test of independence: 2.63 (4 degrees of freedom), p-value 0.62
Means Men .99 vs. Women .88, t-test is equal to 0.94 p-value 0.35
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