Group process refers to the behaviors of the members of small working groups (usually between three and twelve members) as they engage in decision-making and task performance. Group process includes the study of how group members’ characteristics interact with the behavior of group members to create effective or ineffective group performance. Relevant topics include the influences of group norms, group roles, group status, group identity, and group social interaction as they influence group task performance and decision-making, the development and change of groups over time, group task typologies, and decision-making schemes. Relevant group outcomes include group cohesion, process losses and process gains in performance, free riding, ineffective information sharing, difficulties in brainstorming, groupthink, and group polarization. Other variables that influence effective group process include group member diversity, task attractiveness, and task significance. A variety of techniques are used to improve group process.