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Correia, Stephanie; Brendgen, Mara; Vitaro, Frank – International Journal of Behavioral Development, 2022
Socialization among aggressive friends is believed to play a critical role in the development of aggressive behavior. This study examined the moderating effect of norm salience in the classroom on the association between reciprocal friends' and children's own physical, relational, and general aggression. A total of 713 children (M = 10.32 years,…
Descriptors: Elementary School Students, Grade 4, Grade 5, Grade 6
Lacourse, Eric; Baillargeon, Raymond; Dupere, Veronique; Vitaro, Frank; Romano, Elisa; Tremblay, Richard – Journal of Child Psychology and Psychiatry, 2010
Background: Investigating the latent structure of conduct disorder (CD) can help clarify how symptoms related to aggression, property destruction, theft, and serious violations of rules cluster in individuals with this disorder. Discovering homogeneous subtypes can be useful for etiologic, treatment, and prevention purposes depending on the…
Descriptors: Criminals, Predictive Validity, Early Adolescents, Child Development
Vezina, Johanne; Hebert, Martine; Poulin, Francois; Lavoie, Francine; Vitaro, Frank; Tremblay, Richard E. – Journal of Youth and Adolescence, 2011
Few studies have explored the possible contribution of the peer group to dating violence victimization. The current study tested the hypothesis that a risky lifestyle would mediate the relationship between deviant peer affiliation and dating violence victimization among adolescent girls. The proposed mediation model was derived from lifestyles and…
Descriptors: Violence, Sexual Harassment, Females, Peer Relationship
Kokko, Katja; Tremblay, Richard E.; Lacourse, Eric; Nagin, Daniel S.; Vitaro, Frank – Journal of Research on Adolescence, 2006
Trajectories of prosocial behavior and physical aggression between 6 and 12 years of age were identified for a sample (N=1,025) of males. The trajectories were then used to predict school dropout and physical violence at age 17. Using a group-based semi-parametric method, two trajectories of prosociality (low and moderate declining) and three…
Descriptors: Prosocial Behavior, Aggression, Adolescents, Dropouts

Pagani, Linda; Larocque, Denis; Vitaro, Frank; Tremblay, Richard E. – Journal of Youth and Adolescence, 2003
Studied factors that can increase the risk of abusive behaviors toward mothers. Findings for 6,397 French-speaking Canadian adolescents show that parental divorce is associated with a greater risk of physical aggression directed toward mothers, but family environment and parental coping strategies partially mediated that relationship. (SLD)
Descriptors: Aggression, Coping, Family Environment, Family Structure
Pagani, Linda S.; Tremblay, Richard E.; Nagin, Daniel; Zoccolillo, Mark; Vitaro, Frank; McDuff, Pierre – International Journal of Behavioral Development, 2004
Contributing to the family violence and conflict literature, we examine prospective and concurrent risk factors associated with verbal and physical aggression toward mothers by 15/16 year-old adolescent sons and daughters. Data from the Quebec Longitudinal Study of Kindergarten Children is used to examine the influence of socioeconomic factors,…
Descriptors: Family Violence, Aggression, Mothers, At Risk Persons