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Nagin, Daniel; Tremblay, Richard E. – Child Development, 1999
Used semi-parametric mixture model with boys assessed repeatedly from 6 to 15 years to approximate a continuous distribution of developmental trajectories for aggression, opposition, and hyperactivity. Found that a chronic oppositional trajectory, with other trajectories held constant, led to covert delinquency only. A chronic physical aggression…
Descriptors: Adolescent Development, Adolescents, Aggression, Behavior Problems
Peer reviewed Peer reviewed
Vitaro, Frank; Tremblay, Richard E.; Kerr, Margaret; Pagani, Linda; Bukowski, William M. – Child Development, 1997
Tested the individual characteristics and deviant peer association theoretical models of friends' influence on the development of delinquency in disruptive boys. Found that moderately disruptive boys with aggressive-disturbing friends were more delinquent at age 13 than other subgroups of moderately disruptive boys. Highly disruptive and…
Descriptors: Adolescent Development, Aggression, Conformity, Delinquency