Social psychology is the scientific study of how people behave in groups. There are many areas of research within social psychology, however, they share a common focus on how individual and group interactions are shaped by one’s external environment, specifically, other people. Numerous research findings have demonstrated the impact of the group on individual performance, with some studies revealing a positive effect and others, a negative effect. Positive effects of a group on individuals include satisfying our need for belonging, obtaining information, and defining social identity. Negative effects of groups on their members include groupthink, social loafing, and mob behavior.