Extracurricular activities represent a key setting for prevention and promoting positive youth development. However, to date, a crucial aspect of activity participation--activity breadth (participation in a variety of extracurricular settings)--has been largely overlooked as a resource for bolstering adolescents' long-term adjustment, especially…

Perceived discrimination is common and a significant source of stress that may have implications for personality development across adulthood. In this study, we examined whether experiences with discrimination were associated with maladaptive changes in the 5 major dimensions of personality using 2 longitudinal samples that differed in age and…

Investigated the general relationship between children's performance on social and physical measures of cognitive functioning, possible sex differences in performance on the two types of tasks, and the relationship between boys' and girls' performances on these tasks and age and IQ. (SDH)