Table 1

Summary Statistics ECLS-B Estimation Sample^{^a}

	Mean	SD	Married	Single	White	Black	Hispanic	Maternal Education^{^b}
	Mean	SD	Married	Single	White	Black	Hispanic	High School	College
Children’s cognitive skills (σ)	0.00	0.90	0.06	−0.27	0.13	−0.22	−0.31	−0.28	0.11
Labor force participation (%)	54	50	52	62	54	62	50	47	57
Childcare participation (%)	48	50	45	60	47	61	44	40	51
Home quality index	0.18	0.82	0.26	−0.18	0.37	−0.16	−0.24	−0.18	0.32
Childcare quality index	0.02	0.94	0.04	−0.02	0	0.18	0.01	−0.04	0.04
Head Start (%)	5.74	24.6	4.07	12.93	2.28	16.56	13.42	12.21	3.8
Subsidy (%)	1.82	13.76	0.43	8.37	0.93	8.02	1.82	3.01	1.34
Wage ($/hour)^{^c}	17.19	10.37	18.77	10.61	19.27	13.79	12.29	10.54	19.33
Father’s income ($/6 months)	27,575	17,460	27,575		29,913	21,161	20,223	20,421	29,710
Price childcare ($/hour)	3.74	2.38	3.97	2.53	4.00	2.72	3.18	2.48	4.00
Maternal years education	14.18	2.59	14.57	12.37	14.94	13.42	12.3	11.03	15.45
Father years education	13.7	3.92	14.39	9.02	14.66	11.07	11.62	11.21	14.64
Married (%)	82	40	100	0	93	45	68	65	90
Number younger kids	1.52	0.62	1.58	1.28	1.57	1.4	1.44	1.44	1.56
Number older kids	0.40	0.78	0.43	0.27	0.38	0.41	0.45	0.47	0.37
N (child × time period)^{^d}	9,200		7,250	1,850	5,650	1,200	2,300	2,750	6,450

↵a All statistics use sampling weights provided by the ECLS-B.
↵b Maternal education is categorized into high school (12 or less years of schooling) and college (more than 12 years of schooling).
↵c All prices (wages, income, price childcare) are reported in 2001 dollars.
↵d Sample size rounded to nearest 50 per NCES requirements.