Children adopt an inherence-based view of some social categories, viewing certain social categories as reflecting the inherent features of their members. Thinking of social categories in these terms contributes to prejudice and intergroup conflict. Thus, understanding what leads children to apply inherence-based views to particular categories could provide new direction for efforts to reduce these negative social phenomena.

When do descriptive regularities become prescriptive norms? We examined children's and adults' use of group regularities to make prescriptive judgments, employing novel groups that engaged in morally neutral behaviors. Participants were introduced to conforming or non-conforming individuals. Children negatively evaluated non-conformity, with negative evaluations declining with age. These effects were replicable across competitive and cooperative intergroup contexts and stemmed from reasoning about group regularities rather than reasoning about individual regularities. These data provide new insights into children's group concepts and have (...) important implications for understanding the development of stereotyping and norm enforcement. (shrink)