Table 1.

Description of Sample Adolescents, Wave I (n = 10,828)

	n	%	Mean	SD	Min	Max
Demographics
Male	10,828	47.10			0	1
Age	10,821		15.28	1.61	11	21
White	10,811	63.65			0	1
African American	10,811	21.68			0	1
Hispanic	10,796	16.06			0	1
Other	10,811	19.73			0	1
Covariates
Expect to attend collegea	10,766		4.15	1.14	1	5
Depressed	10,809	39.42			0	1
Parental involvement	10,810		5.96	3.42	0	20
Desire to leave home	10,711	33.63			0	1
Safe neighborhood	10,768	88.93			0	1
Marijuana use	10,720	25.90			0	1
Other drug use	10,768	6.85			0	1
Peer alcohol use	10,616	53.08			0	1
Peer marijuana use	10,633	32.31			0	1
Alcohol use
Alcohol users (ever)—Wave I	10,778	53.74			0	1
Alcohol users (since W1)—Wave II	10,767	47.57			0	1
Alcohol users (since W2)—Wave III	10,722	76.67			0	1
Problematic alcohol use—Wave III	10,721	49.44			0	1
Alcohol nonusers	10,749	35.65
Alcohol initiators	10,780	10.39
Alcohol desistors	10,741	16.42
Consistently high alcohol users	10,722	37.16
Violence (past year)
Violent activity—Wave I	10,722	19.55			0	1
Violent activity—Wave II	10,828	9.89			0	1
Violent activity—Wave III	10,786	6.66			0	1
Nonviolent	10,777	76.63
Violence initiators	10,823	3.76
Violence desistors	10,777	13.46
Consistently high violent	10,823	6.05

^aHigher values indicate increased intention to attend college.