The aim of this study was to examine trajectories of pathological video game symptoms over a 6-year period from adolescence to emerging adulthood. We also examined a number of predictors and outcomes for different trajectories. Participants included 385 adolescents (M age = 15.01 at the initial time point) who completed multiple questionnaires…

Depressive symptoms, somatic complaints, and circulating levels of inflammatory biomarkers interleukin-6 (IL-6) and C-reactive protein (CRP) were examined as correlates of social and physical peer victimization in an ethnically diverse sample of adolescents (N = 91) using a multi-informant approach. Hierarchical regression analyses indicated that…

Research has documented various family and individual risk factors associated with severe conduct problems, but little is known about the developmental origins of children who engage in both aggressive and prosocial interactions with others. The present study utilized growth-mixture modeling to identify distinct trajectories of physical aggression…

Although social difficulties have been identified as sequelae of children's experiences with interparental conflict and insecurity, little is known about the specific mechanisms underlying their vulnerability to social problems. Guided by emotional security theory, this study tested the hypothesis that children's emotional insecurity mediates…

Whereas US-based data have contributed to our understanding of family composition changes over the last decades, data on Canadian families are limited, and previous studies have stressed the need for in depth, longitudinal investigations. This article begins to fill this gap in the literature by providing a current and detailed portrait of family…

Popularity has been linked to heightened aggression and fewer depressive symptoms. The current study extends this literature by examining the unique contributions of same-sex and cross-sex popularity to children's development, as well as potential mediating processes. Third- and 4th-graders (212 boys, 250 girls) provided data at 3 time points over…

The identification of developmentally specific windows at which key predictors of adolescent substance use are most influential is a crucial task for informing the design of appropriately targeted substance use prevention and intervention programs. The current study examined effects of conduct problems and depressive symptomatology on changes in…

Substantial evidence suggests that rumination is an important vulnerability factor for adolescent depression. Despite this, few studies have examined environmental risk factors that might lead to rumination and, subsequently, depression in adolescence. This study examined the hypothesis that an adverse family environment is a risk factor for…

The authors examine predictors of family participation in the G.R.E.A.T. Families Program of the Multisite Violence Prevention Project (MVPP), a four-site collaboration examining student, teacher, and family interventions for middle school students. Teachers recruited two cohorts of sixth grade students, recognized as being aggressive and…