Bullying is a worrisome reality due to its harmful consequences. Although many constructs have been associated with bullying victimization and aggressive behavior, its relationship both with loneliness and personality has received little attention. The main objective of this study is to identify differences in bullying victimization and aggressive…

Relational aggression involves behaviors intended to harm others' social relationships, reputation or status, and feelings of belonging. Examples of the adverse correlates of relational aggression include peer rejection, anxiety and depression, poor psychological adjustment, problematic alcohol use, and dysfunctional anger. University housing…

The current paper provides external validation of the bifactor model of ADHD by examining associations between ADHD latent factor/profile scores and external validation indices. 548 children (321 boys; 302 with ADHD), 6 to 18 years old, recruited from the community participated in a comprehensive diagnostic procedure. Mothers completed the Child…

In this paper, we review findings from Project Competence on the nature of personality development from middle childhood through the early adult years and place these findings in the context of current research on temperament and personality traits. In a series of studies using data drawn from the Project Competence longitudinal project, we have…