What happens after enrollment? An analysis of the time path of racial differences in GPA and major choice

Table 15 Change of major because of difficulty

Female	0.062	0.050	0.075	0.071
	(0.053)	(0.054)	(0.054)	(0.053)
Black	0.186^**	0.088	0.066	0.000
	(0.077)	(0.082)	(0.083)	(0.078)
Hispanic	0.137^*	0.084	0.099	0.066
	(0.072)	(0.074)	(0.076)	(0.077)
Asian	0.087	0.111	0.134^*	0.109
	(0.112)	(0.119)	(0.079)	(0.083)
Initial Major Nat Sci/Eng/Econ	0.120	0.142^*	0.147^**	0.141^**
	(0.074)	(0.074)	(0.074)	(0.071)
SAT Score		-0.091^***	-0.065^**	-0.009
		(0.030)	(0.032)	(0.033)
Duke Achievement			-0.112	-0.016
			(0.074)	(0.069)
Duke Curriculum			-0.032	-0.008
			(0.064)	(0.062)
Duke Essay			-0.009	-0.005
			(0.060)	(0.060)
Duke Recommendation			-0.038	0.020
			(0.062)	(0.062)
Duke Personal Qualities			0.075	0.076
			(0.062)	(0.061)
Year 1 Student Effect				-0.187^***
				(0.032)
Log likelihood	-217.7	-212.1	-208.7	-190.8
Observations	377

Note: Logit marginal effect on the probability of switching major due lack of academic preparation. Standard errors in parentheses. *, ** and *** indicate that the coefficient is significant at 10%, 5% and 1% respectively. See Table 1 for a description of the Duke admission's office variables. “Year 1 Student Effect” refers to the first period student effect (α_{i
1}) from the grades analysis in subsection Class rank adjusted for selection SAT score was normed to N (0,1).