A collection of two or more people who interact with each other and are independent, in the sense that their needs and goals cause them to rely on each other.

Social Norms: Different for different groups

  Social Roles: Shared Expectations in a group about how particular people are supposed to behave

Group Cohesiveness:                                      Qualities of a group that bind members together and promote liking between member

Causes of Groupthink:                                  Group isolation;                                                       a directive leader;                                               high stress;                                                       poor decision-making procedures

Symptoms of Groupthink:                            illusion of invulnerability;                                  belief in moral correctness of group; stereotyped view of out-group;                         self-censorship;                                                  illusion of unanimity;                                mindguards

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