Table 1. Descriptive Statistics for Variables Used in Regression and Decomposition Models.

	NLS		HSB		NELS		ELS
Sophomores at Four-Year Schools	Female	Male	Female	Male	Female	Male	Female	Male
Grade Point Average	3.35	3.14	3.18	2.97	3.22	3.06	3.37	3.19
English Coursework	6.48	6.40
Math Coursework	4.55	5.40
Adv. Science Coursework			0.97	1.19	1.48	1.66	1.56	1.73
Std. Math Test Score	0.62	0.90	0.71	0.96	0.51	0.69	0.43	0.72
Math-Reading Diff.	−0.04	0.28	0.04	0.24	−0.08	0.30	−0.08	0.22
Importance of Family	2.38	2.35	2.50	2.50	2.53	2.47	2.61	2.54
Extrinsic Values	2.42	2.54	2.59	2.69	2.64	2.69	2.68	2.68
Intrinsic Values	1.96	1.90	1.73	1.74	2.25	2.05	2.24	2.05
Math Self Assessment							0.123	0.367
STEM Major (%)	9.81	20.34	14.48	32.98	12.75	27.87	12.47	27.17
All High School Seniors
Grade Point Average	2.96	2.65	2.67	2.43	2.82	2.60	2.93	2.68
English Coursework	6.26	6.26
Math Coursework	3.53	4.29
Adv. Science Coursework			0.38	0.47	0.89	0.92	1.03	1.02
Std. Math Test Score	−0.04	0.22	−0.10	0.03	−0.11	−0.01	−0.17	−0.02
Math-Reading Diff.	−0.14	0.15	−0.04	0.05	−0.19	0.14	−0.16	0.09
Importance of Family	2.39	2.36	2.49	2.47	2.51	2.45	2.58	2.54
Extrinsic Values	2.49	2.59	2.60	2.69	2.66	2.70	2.69	2.72
Intrinsic Values	1.87	1.86	1.62	1.69	2.20	2.01	2.21	2.06
Math Self Assessment							−0.142	0.054
STEM Major (%)	5.80	8.44	5.55	12.28	7.37	15.78	5.95	11.73

Note: All performance and values variables are measured in twelfth grade, with the exception of ELS, where the reading test score is from tenth grade. The estimates are weighted (using full sample weights) to reflect the population of 12th graders in the respective year. The conditional sample (first panel) is restricted to students who attend four-year institutions during the spring of their sophomore (HSB, NELS, ELS) years or during the fall of their sophomore year (NLS72). The unconditional panel (second panel) is representative of all high school seniors.