TABLE 1.

Descriptive information on children’s language, math, and socio-emotional skills at time 1.

		Mean	SD	Range	N
Vocabulary (70 items)	Overall	31.40	20.80	0–70	577
	Boys	28.89	21.33	0–70	293
	Girls	33.98	19.95	0–70	284
Language use (5 items)	Overall	4.47	3.16	0–10	577
	Boys	4.09	3.16	0–10	293
	Girls	4.87	3.10	0–10	284
Math language (28 items)	Overall	43.01	14.58	28–112	574
	Boys	42.26	15.03	28–112	293
	Girls	43.79	14.08	28–112	282
Math (13 items)	Overall	19.00	7.65	13–52	574
	Boys	18.55	7.97	13–52	292
	Girls	19.46	7.30	13–48	282
Empathy (6 domains)	Overall	13.01	4.21	0–18	571
	Boys	12.40	4.19	0–18	289
	Girls	13.63	4.15	0–18	282
Self-regulation/cooperation (4 domains)	Overall	8.54	2.68	0–12	571
	Boys	8.12	2.65	0–12	289
	Girls	8.98	2.68	0–12	282