Exposure to deviant friends has been found to be a powerful source of influence on children's and adolescents' aggressive behavior. However, the contribution of deviant friends may have been overestimated because of a possible non-accounted gene-environment correlation (rGE). In this study, we used a cross-lagged design to test whether friends'…

This study examines the effects of peer victimization by verbal, physical, and relational bullying on Korean adolescents' self-worth, disconnect to peers, school engagement, and academic achievement. A two-year longitudinal survey on 3,266 sixth-graders attending school in Seoul, Korea was used. Multivariate regression results controlling for…

The aim of this study is to develop a multidimensional measure for assessing children's personal agency to handle parental conflict through their coping self-efficacy beliefs (Bandura, 1997). Coping self-efficacy beliefs are individuals' perceived ability to motivate themselves, access cognitive resources, and perform the actions required to take…

Poverty is a well-established risk factor for behavior problems, yet our understanding of putative family mediators during early childhood (i.e., before age 5 years) is limited. The present study investigated whether the association between poverty and behavior problems during early childhood is mediated simultaneously by perceived parenting,…

Aggressive behaviours in adolescence often originate in early development. This study tested three longitudinal pathways starting in early childhood, in a sample of 325 Belgian participants (162 girls) assessed every 1 or 2 years from birth through age 14. Structural equation models supported the "mother early dissatisfaction" pathway…

The purpose of this study was to evaluate the effects of a pilot school-based intervention called CEPIDEA, designed to promote prosocial behavior in early adolescence. The study took place in a middle school located in a small city near Rome. The intervention group included 151 students (52.3% males; M[subscript age] = 12.4), and the control group…

High and stable levels of aggression and the presence of aggressive behaviour in multiple settings according to different informants are risk factors for later problems. However, these two factors have not been investigated in early childhood. The present study investigates trajectories of parent-reported child aggression from 1.5 up to 6 years of…

The primary aim of this study was to assess the moderating role of emotion regulation in the relationship between some components of social information processing (hostile interpretation and anger) and aggressive behavior. The secondary aim was to assess whether emotion regulation, hostile interpretation, and anger account for gender differences…

The first Norwegian Manifesto (Manifesto-I) Against Bullying was launched by the Prime Minister in autumn 2002 and lasted for 2 years. A background for Manifesto-I was that school bullying had increased almost linearly in Norway with over 60% more victims and bullies since 1995. During the manifest period, the percentage of victims and bullies…

Aggressive behavior between children in schools is a topic that receives much interest as violence and aggressive behavior cause many maladaptive social outcomes in the school setting. In the current study the Implicit Association Test (IAT) was adapted as a measure of children's implicit aggression, by assessing the association of the self…

Despite wide recognition of the important role of student bystanders in influencing peer aggression in schools, little is currently known about what influences students to intervene in defense of peer aggression victims. This longitudinal study involving 1,167 primarily white adolescents (aged 12-15 years, 613 females) investigated the role of…

This study compared rates of dating aggression among 16-year-old adolescents in Canada and Italy, as well as differential associations with dyadic risk factors. 664 Canadians (297 boys, 367 girls) and 578 Italians (315 boys, 263 girls) indicated the frequency of physical aggression towards a romantic partner. They also rated the level of conflict…

This study addresses the longitudinal relationships between three kinds of moral cognitions--self-serving cognitive distortions, moral judgment, perception of community--and antisocial behavior in young adolescents. Aims were to gain insight in direct and indirect relationships, stability, and causality. The sample included 724 students (M age =…

Social relations of second grade students (247 boys, 290 girls) were examined in rural elementary classrooms. Cluster analysis of teacher ratings was used to identify interpersonal competence configurations including perceived unpopular-aggressive (i.e., "Troubled") and perceived popular-aggressive (i.e., "Tough") subtypes for…

This study distinguishes different patterns of friendship quality in terms of support from and conflict with friends, and reciprocity. Associations between friendship patterns and adolescents' adjustment (self-perception, expectations for the future, depressive feelings, sense of alienation, lying, disobedience, and aggression) were hypothesized…