Group dynamics

Forming, joining and distinguishing groups has a number of advantages: groups help us to make sense of our world and to coordinate mutually beneficial social exchange more effectively. The tendency to groups are found everywhere. However, not every type of group is equally important or 'groupy': intimacy groups and task groups especially are seen to be important and high in entitativity, while social categories and loose associations are less so. Intimacy groups mainly fulfil people's need to belong, and social categories help people fulfil identity-related needs.