Although adolescents often participate in multiple extracurricular activities, little research has examined how the breadth of activities in which an adolescent is involved relates to school-related affect and academic performance. Relying on a large, multi-ethnic sample (N = 864; 55.9% female), the current study investigated linear and non-linear…

In this study, we examined the associations between organized activity participation during early adolescence and adjustment in a large and economically diverse sample of African American and European American youth. The sample included 1,047 youth (51% female and 49% male and 67% African American and 33% European American). We used analysis of…

In a follow-up study, academic achievement results from 2 years later are added to data from 1990 for 1,208 seventh and ninth graders for whom relationships between achievement and time use were studied. Results focus on competition of time uses for the time and attention of the adolescent. (SLD)