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This study used data from 6 sites and 3 countries to examine the developmental course of physical aggression in childhood and to analyze its linkage to violent and nonviolent offending outcomes in adolescence. The results indicate that among boys there is continuity in problem behavior from childhood to adolescence and that such continuity is especially(More)
This study examined 2 aspects of friendship (presence and perceived qualities of a best friend) as moderators of behavioral antecedents and outcomes of peer victimization. A total of 393 children (188 boys and 205 girls) in the 4th and 5th grades (mean age = 10 years 7 months) participated during each of 2 waves of data collection in this 1-year(More)
Chronic antisocial behaviour in youth has been associated with cortisol, a measure of stress reactivity. However, some studies have found low cortisol levels, while others have found elevated cortisol levels. The present study compared variously defined aggressive subgroups for differences in salivary cortisol. A population-based sample of boys was followed(More)
Using a French-Canadian population-based longitudinal data set, we examine the impact of socioeconomic factors (paternal education and family structure); inherent individual factors (child gender and developmental trajectories of physical aggression from early to later childhood, problematic substance use), family environment (concurrent parent-child(More)
AIMS This study investigated whether impulsivity measured in 12-14-year-olds could predict problem gambling in late adolescence, above and beyond other personality factors such as aggressiveness and anxiety. DESIGN A prospective-longitudinal design was used, thus overcoming limitations of past studies which used concurrent or retrospective designs. (More)
BACKGROUND Reactive and proactive subtypes of aggressive 10-11-12-year-old children were compared with non-aggressive children to examine whether the two forms of aggression were differentially related to antecedent and subsequent measures. METHOD A large community sample of boys and girls was used. Reactive and proactive aggression was measured through(More)
The present study examined (a) whether groups of children can be empirically identified with distinct longitudinal profiles of depressed mood from late childhood through early adolescence, (b) to what extent these different longitudinal depression profiles are predicted by problematic relations with parents, same-sex peers, and other-sex peers, and (c) what(More)
The purpose of this study was threefold: (1) to assess the possible mutual influence between gambling, substance use, and delinquency over a two-year period during mid adolescence, (2) to test whether variables that are usually predictive of delinquency and substance use also predict gambling, and (3) to test whether the links between the three problem(More)
The authors examined cross-lagged links among gambling, substance use, theft, and violence from midadolescence to young adulthood and whether behavioral disinhibition, deviant peers, and parental supervision as common risk factors explain or moderate those links. In 2 community samples, male Caucasians were assessed for gambling participation and problems(More)
BACKGROUND In some studies, shyness and anxiety have protected at-risk boys from developing delinquency. In others, shyness and withdrawal have increased risk. We argue that this is because behavioral inhibition, which is the protective factor, has been confounded with social withdrawal and other constructs. Our study addresses 3 major questions: (1) is(More)