College major peer effects and attrition from the sciences

Table 6 Determinants of college outcomes of URM intended science majors

Variables	Graduated in sciences	Final major science	Cumulative GPA	Graduated	Time to degree
Peer Ability Index:
Intended STEM majors	−0.274**	0.0791	−0.315***	−0.425***	0.268
	[0.109]	[0.131]	[0.0732]	[0.0855]	[0.540]
Intended non-STEM	0.163	−0.0357	0.0807	0.207**	−0.158
Majors	[0.124]	[0.134]	[0.0588]	[0.0626]	[0.462]
Own Characteristics:
Math SAT score	0.106***	0.123***	0.0318	−0.00402	−0.0646
	[0.0143]	[0.0166]	[0.0208]	[0.0112]	[0.0465]
Verbal SAT score	−0.00592	−0.0163**	0.0797***	0.0118	−0.105**
	[0.00729]	[0.00630]	[0.0159]	[0.0122]	[0.0375]
UC-Adjusted HS GPA	0.112***	0.0609***	0.251***	0.102***	−0.223***
	[0.0104]	[0.00639]	[0.0162]	[0.00653]	[0.0355]
Observations	12,114	12,114	11,956	12,114	8,473
R-squared	0.483	0.484	0.561	0.489	0.529

Notes: Each column contains coefficient estimates from separate regressions. Each regression also contains controls for parental education, family income by cohort, college, college selectivity tier by cohort, and UC application-admission pattern fixed effects that account for the intended major listed on each application. Robust standard errors, clustered by campus, are reported in brackets. ***p < 0.01, **p < 0.05, based on a t-distribution with 5 d.f.