The benefits of afterschool activity participation for youth development are well-documented. An interesting question dominating this field is whether there is a threshold at which point participating in too many activities (breadth) and spending too much time in those activities (intensity) is negatively associated with desirable outcomes. Using…

Peers are central in shaping adolescents' development across various domains. This research examined patterns of peer system resources and liabilities, and their association with academic adjustment. A person-centred approach, Latent Profile Analysis, was used to classify students into groups based on characteristics of the peer system: friendship…