Group Dynamics

Group dynamics refers to the patterns of interaction, communication, roles, leadership, and influence that develop within groups and between them over time. Kurt Lewin coined the term and founded the study of group processes, analyzing leadership styles and the forces that shape group behavior. Georg Simmel analyzed how group size and form shape relationships, and George Homans examined how activities, interactions, and sentiments interrelate in small groups. Robert Bales developed interaction process analysis to code behavior in task groups, and Bruce Tuckman proposed stages of forming, storming, norming, and performing. Elton Mayo's Hawthorne studies highlighted informal groups at work, while Irving Janis described groupthink. Solomon Asch and Muzafer Sherif studied conformity and norm formation, and Henri Tajfel and John Turner explained intergroup behavior through social identity. Cecilia Ridgeway showed how status beliefs shape hierarchies in small groups, and Randall Collins examined emotional energy. Conflict, cohesion, and exclusion are central features. Critics note that laboratory findings may not generalize. Group dynamics remains central to research on organizations, teams, education, therapy, and social psychology.