Table 4.

The comparison of regressors between states that have changed cutoff and those that have not changed it

	(1) OLS	(2) WLS	N
Sex ratio	−0.00004	−0.00003	1,451
	(0.0004)	(0.0003)
Father’s age at birth	−0.1552	−0.1962	1,451
	(0.1882)	(0.2295)
Mother’s age at birth	−0.3689	−0.3764	1,451
	(0.3035)	(0.3246)
Average birth weight	0.7560	−0.5568	1,451
	(17.7316)	(15.0495)
Average gestation	−0.0335	−0.0192	1,451
	(0.0468)	(0.0447)
Ratio of white father	−0.0562*	−0.0390	1,451
	(0.0307)	(0.0258)
Ratio of black father	0.0280	0.0187	1,451
	(0.0252)	(0.0252)
Ratio of white mother	−0.0750**	−0.0487	1,451
	(0.0371)	(0.0330)
Ratio of black mother	0.0415	0.0250	1,451
	(0.0353)	(0.0349)
Mother’s years of education	−0.1884*	−0.1903*	1,451
	(0.1061)	(0.1061)
Unemployment rate	0.2800	0.1566	1,331
	(0.3534)	(0.3311)
Personal income per capita	−1,478.5	−1,442.3	1,042
	(1,338.0)	(1,390.8)
Expenditure per pupil in public elementary and secondary schools	−629.5	−977.6	958
	(565.6)	(654.3)
Elementary school size	20.7	8.5	829
	(42.1)	(41.1)
Secondary school size	20.9	5.2	829
	(79.9)	(78.6)
The number of pupils per staff	0.459	0.6467	829
	(0.4010)	(0.4516)
The number of pupils per teacher	0.3146	0.7467	829
	(0.7098)	(0.8507)
Average salary of teachers	−1,824.9	−2,453.5	829
	(2,283.5)	(2,790.1)
Cohort size	−15,220.2	−8,348.2	1,451
	(21,957.1)	(43,945.7)
Weight	N	Y

Notes:

^*p<0.1;

^**p<0.05;

^***p<0.01.

Standard errors are in parentheses. Standard errors are clustered by state.

Independent variable is a dummy variable which is 1 if a state has ever changed kindergarten cutoff during the sample period and 0 otherwise. Year dummies are also controlled.