We tested three hypotheses derived from intergroup emotions theory: that group-based emotions, emotions felt as a member of a group, (1) are influenced by group norms, (2) especially for highly identified group members, and (3) are relatively more positive for highly identified members. Hypothesis 4 tested the prediction that these self-categorization, normative influence, and identification processes hold across memberships in exemplars of intimacy, task, and social category groups, which differ from one another in structural and functional characteristics. Two studies using three different samples found strong consistent support for Hypotheses 1 and 3, and only partial support for Hypothesis 2 (high identification increased the power of group norms on group-based emotions about only negative events). These findings held across multiple exemplars of the three group types, regardless of whether group-based emotions were targeted or untargeted, and regardless of whether emotion norms were empirically derived or based on group members’ perceptions.