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Direct linkBarker, Edward D.; Tremblay, Richard E.; Nagin, Daniel S.; Vitaro, Frank; Lacourse, Eric – Journal of Child Psychology and Psychiatry, 2006
Background: Different developmental courses have been postulated for proactive and reactive aggression. Objective: Investigated the developmental course of proactive and reactive aggression in a large sample of adolescent boys from low socioeconomic areas. Method: A dual group-based joint trajectory method was used to identify distinct…
Descriptors: Group Membership, Developmental Stages, Males, Aggression
Peer reviewedCraig, Wendy M.; Vitaro, Frank; Gagnon, Claude; Tremblay, Richard E. – Social Development, 2002
Examined stability of gang membership in early adolescence, concurrent behaviors, family characteristics, friendships, and school attitudes of stable and unstable gang and nongang members. Found that stable gang members, compared to nongang members, had higher teacher ratings of fighting behavior, hyperactivity, inattention and oppositional…
Descriptors: Adolescent Attitudes, Adolescents, Aggression, Behavior Patterns
