Introduction to the special section on social norms and behavioral development

This introduction outlines the goals for the special section on social norms and behavioral development. The study of social norms has attracted much interest in peer relations research, and has turned attention to group-level processes, often defined based on the classroom, which create and sustain shared meanings that impact adolescent behavioral and social adjustment. Norms can be differentiated in three ways. First, prescriptive or injunctive norms can be distinguished from descriptive norms. Second, a distinction can be made between what is salient for all classmates or for a subgroup of norm setters, in particular popular peers. Third, social norms can be distinguished from perceived norms. The contributions to this special section invite debate on the future of research on norms, and suggest numerous avenues for further research, with hopes that an understanding of how social norms affect social development will better inform peer relations research as well as norm-based interventions.