The goal of this study is twofold: (1) to assess brain anatomical differences between children meeting diagnostic criteria for oppositional defiant disorder (ODD) and healthy controls, and (2) to investigate whether morphological brain characteristics associated with ODD differ in boys and girls. Eight-year-old participants (N = 38) were scanned…

This study attempted to validate distinctions between popularity and social acceptance in the cultural context of Hong Kong. We recruited 280 Chinese children (132 girls, 148 boys, mean age = 9.5) from Hong Kong primary schools. These children completed a peer nomination inventory assessing popularity, social acceptance, social rejection,…

The present study examined the association between theory of mind and indirect versus physical aggression, as well as the potential moderating role of prosocial behavior in this context. Participants were 399 twins and singletons drawn from two longitudinal studies in Canada. At five years of age, children completed a theory of mind task and a…

Although cross-cultural research concerning children's emotions is growing, few studies have examined emotion dysregulation in culturally diverse populations. This study compared 6- to 8-year-old children's reported methods of expressing and controlling anger, sadness, and physical pain, and their justifications for doing so across four groups in…

This study examined the heterotypic continuity of aggression hypothesis (physical to indirect) using independent teacher reports of aggression drawn from a nationally representative sample of 749 Canadian girls and boys. Confirmatory factor analysis using an accelerated longitudinal design confirmed a two-factor model of physical and indirect…

Investigated stability and incidence of bullying and victimization. Studied links between bullying and victimization on the one hand and reactive and proactive aggression on the other. Found that bullies and bully/victims were both reactively and proactively aggressive, while victims were only reactively aggressive. Explored relevance of outcomes…

This study compared boys' and girls' coping responses to videotaped representations of marital conflict that varied in conflict content, tactic, and the gender of the parent engaging in conflict behaviour. Participants were 398 children (208 boys, 190 girls) aged 12-13 years old living in the United Kingdom. Child-related conflict exchanges…

U.S. and Indonesian 9- to 11-year-old children (N = 147) reported on multiple occasions conflicts that they experienced with peers. The precursors of conflict, behavior during conflict episodes, and resolutions were coded. Teacher ratings of aggression and social preference were obtained. The conflicts of children in both countries most often…