Table 1.

Antisocial and Delinquent Peer Association Constructs

Construct and measure	Respondent	Item	Sample item	Reliability: Cohort 1/Cohort 2 α
Early Adolescent Antisocial Behavior
Parent Questionnaire: Overt Antisocial Child Behavior Checklist. (CBC; Achenbach & Edelbrock, 1983)	Parents	7	Disobedient at home	.82/.77 (M); .76/.82 (F)
Parent Questionnaire: Covert Antisocial, CBC	Parents	8	Steals at home	.71/.62 (M); .79/.76 (F)
Parent Questionnaire: Overt Antisocial	Parents	11	Hits siblings or other children	.87/.86 (M); .86/.92 (F)
Parent Questionnaire: Covert Antisocial	Parents	21	Takes other kids’ things	.85/.80 (M); .84/.85 (F)
Parent Telephone Interview: Overt Antisocial	Parents	7	Physical fights in past 24 hr	.74/.82
Parent Questionnaire	Parents	1	Gets into arguments
Teacher Questionnaire: Overt Antisocial CBC	Teacher	11	Disobedient at school	.93/.91
Teacher Questionnaire: Covert Antisocial, CBC	Teacher	7	Feels guilty after misbehaving	.85/.79
Teacher Questionnaire: Walker–McConnell (Walker & McConnell, 1988)	Teacher	1	Exerts negative influence on peers
Child Interview: Overt Antisocial	Boy	9	Disobeys adults	.78/.82
Child Interview: Covert Antisocial	Boy	24	Steals things worth < $5	.87/.88
Child Telephone Interview: Overt Antisocial	Boy	8	Fights in past 24 hr	.88/.90
Interview ratings	Interviewer	1	Likelihood of trouble with police
Coder ratings	Coder	4	Physically attacked family	.81/.86
Adolescent Delinquent Peer Association
Parent Questionnaires including CBC	Parents	3	Hangs with kids who fight	.84/.80 (M); .82/.87 (F)
Teacher Questionnaires including CBC and Walker–McConnell social skills	Teacher	4	Hangs out with troublemakers	.92/.92
Child Interview/Questionnaires	Boy	15	Peers have stolen something < $5	.86/.80

Note. M = mother report; F = father report.