Associations between social norms and bullying bystander behaviours have been studied extensively over the years, but the mechanisms by which subjective norms influence bystander behaviours remain unclear. This study is the first to examine whether bystander popularity moderates the association between perceived peer pressure for intervention and…

This article examines relationships between local drug policy (as represented by prosecutor-reported case outcomes for first-offender juvenile marijuana possession cases) and youth self-reported marijuana use, perceived risk, and disapproval. Interviews with prosecutors and surveys of 8th-, 10th-, and 12th-grade students in the United States were…