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. Author manuscript; available in PMC: 2014 Nov 1.
Published in final edited form as: Soc Sci Res. 2013 Jul 15;42(6):1519–1541. doi: 10.1016/j.ssresearch.2013.07.002

Table 6. College Coursework, by Gender and Major.

Gibbs-Martin Index (Female
Coef.)		 Humanities Credits (Female
IRR)		 Social Science Credits
(Female IRR)
STEM Majors .052 (.006) 1.10 (.039) 1.11 (.040)
STEM Majors (Top Quartile
SAT/ACT)		 .046 (.012) 1.15 (.085) 1.11 (.065)

Source: B&B (1993/2003). Note: We use postsecondary institution fixed effects to account for unobservable differences in degree requirements between schools. Robust standard errors. Fixed-effects regression of Gibbs on female. Fixed-effects Poisson regression of credits on female. The analysis is restricted to degree recipients in STEM fields from four-year colleges.