Table 7

Second-Stage Results for Attendance of Highest Track Schools—Population of Students Born in June or July

		2002/03	2003/04	2004/05	2005/06	2006/2007
Cohort 1 (1998)	Coefficient	0.13^**	0.15^**	0.16^**	0.12^**	0.11^**
	(standard error)	(0.02)	(0.02)	(0.03)	(0.03)	(0.03)
	Observations	11,077	10,780	10,842	10,824	10,624
Cohort 2 (1997)	Coefficient	0.10^**	0.09^**	0.08^**	0.08^**	0.08^**
	(standard error)	(0.02)	(0.03)	(0.02)	(0.02)	(0.03)
	Observations	10,318	10,412	10,476	10,512	10,192
Cohort 3 (1996)	Coefficient	0.13^**	0.13^**	0.12^**	0.14^**	0.11^**
	(standard error)	(0.03)	(0.03)	(0.03)	(0.03)	(0.03)
	Observations	10,923	10,934	11,044	10,902	10,902
Cohort 4 (1995)	Coefficient	0.19^**	0.15^**	0.14^**	0.09^**	0.07^**
	(standard error)	(0.03)	(0.03)	(0.03)	(0.03)	(0.03)
	Observations	11,061	11,069	10,787	10,787	10,787
Cohort 5 (1994)	Coefficient	0.14^**	0.14^**	0.12^**	0.08^**	0.07^**
	(standard error)	(0.03)	(0.03)	(0.03)	(0.03)	(0.03)
	Observations	10,744	10,396	10,396	10,396	10,396
Cohort 6 (1993)	Coefficient	0.16^**	0.06^**	0.05^*	0.08^**	—
	(standard error)	(0.03)	(0.03)	(0.03)	(0.03)	—
	Observations	10,248	10,248	10,248	10,248	—

Source: Student-level data of the statistics on general and vocational schools for the state of Hessen 2002/03 to 2006/07 provided by the Bureau of Statistics of the State of Hessen (Hessisches Statistisches Landesamt). Authors’ own calculations. Data on students who are supposed to be in Grades 11–13 include imputed observations (see Section IIB).
Note: Two-stage least squares regressions of a binary indicator for attending highest track schools (leading to an unrestricted university entry certificate) on school-entry age, instrumented by assigned school-entry age.
↵* Significant at the 10 percent level.
↵** Significant at the 5 percent level. Documented coefficients refer to specifications without control variables. Effects are robust if available control variables (gender, region, and nationality) are included.