Table 1.

Representative Measures of Predictors From Grade 10

Construct	Assessment instrument	Respondent	Number of items	Sample item	Cronbach’s alpha	Pearson corr.
Antisocial behavior					0.74
	CBC-L, overt	M,F	7,7	Disobedient at home.	.82, .74	0.65
	CBC-L, covert	M, F	8,8	Destroys others things.	.84, .87	0.73
	Peers q'naire	M, F	1, 1	How often does your son get in conflicts with other kids around the home?		0.24
	CBC-L, overt	Teacher	11	Cruelty, bullying, meanness to others.	0.93
	CBC-L, covert	Teacher	8	Lying or cheating.	0.86
	TPRSK	Teacher	1	How often does he exert negative influence on his friends?
	Interview, ratings	Interviewer	1	How likely is it that this boy will have future trouble with the police?
Deviant peer association					0.76
	CBC-L + peers q'naire	M,F	1+2, 1+2	Hangs out with kids who get in trouble.	.83, .84	0.71
	CBC-L + TPRSK	Teacher	1+3	Does this student associate with kids involved in stealing or vandalism?	0.92
	Interview + describing	Youth	10+5	During the past year, how many of your friends stole something worth < $5?	0.86
	friends q'naire
Antisocial behavior + deviant peers						0.78
Depressive symptoms
	CESD-D	Youth	20	During the past week, I felt sad.	0.86
Parent monitoring					0.75
	Interview, parent monitoring	M,F	12, 15	On the average, how many hrs per week is your son alone or with siblings only?	.82, .79	0.73
	Interview, impressions	Interviewer	1, 1	This parent seemed to monitor the child carefully.		0.77
	Interview	Youth	9	Your parents let you go any place you please without asking.	0.79
	Interview, impressions	Interviewer	1	This boy seems to be well supervised by his parents.
Parent marijuana use
	Substance use q'naire	M,F	1, 1	How often do you smoke pot or hash?		0.88
Peer substance use					0.9
	Interview	Youth	10	How often do your friends drink?	0.84
	Interview	M, F	3,3	Son hangs out with kids who smoke?	.88, .87

Note: M stands for Mother, F stands for Father.