Table A3. Marginal Effects of Academic Performance on STEM Major, from Logistic Regression of STEM Major on Demographics, Measures of Math and ReadingAchievement and Life Goals.

	HSB-Female	HSB-Male	NELS-Female	NELS-Male	ELS-Female	ELS-Male
Math	0.107***	0.087**	0.055***	0.112***	0.047***	0.071
Reading	−0.048**	−0.036+	−0.015	−0.029+	−0.003	−0.045***
Sci. CW	0.056***	0.105***	0.067***	0.072***	0.033***	0.071***
GPA	0.068**	0.113***	−0.001	0.025	0.048**	0.139***

Marginal Effects from Multinomial Logistic Regression of STEM Major Categories on Demographics, Measures of Math and Reading Achievement and Life Goals
	HSB-Female	HSB-Male	NELS-Female	NELS-Male	ELS-Female	ELS-Male
Biol. Sci.
Math	0.017	−0.009	−0.010	0.020	0.009	−0.007
Reading	−0.001	0.009	0.019+	−0.006	0.007	0.007
Sci. CW	0.013*	0.007	0.032***	0.007	0.005	0.012
GPA	0.018	0.016	0.005	0.025	0.045**	0.056***
Phys. Sci.
Math	0.052**	0.033	0.028**	0.030*	0.019**	0.023*
Reading	−0.036**	−0.015	−0.018*	−0.003	−0.005	−0.017*
Sci. CW	0.027**	0.029*	0.025***	0.012	0.013**	0.010
GPA	0.025	0.023	−0.0014	0.000	0.004	0.042**
Eng’g
Math	0.041**	0.071**	0.039***	0.065***	0.015**	0.057***
Reading	−0.010	−0.031+	−0.015*	−0.021+	−0.006	−0.034***
Sci. CW	0.015*	0.069***	0.009	0.061***	0.016***	0.052***
GPA	0.027+	0.075***	−0.001	0.001	−0.003	0.041*

Notes: The analysis is restricted to sophomores in four-year colleges.

Notes: The analysis is restricted to sophomores in four-year colleges. The reference category is non-STEM majors.