Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
An in-group is a social group to which a person psychologically identifies as being a member. It is characterized by a sense of belonging and identity, often distinguishing those within the group from members of out-groups.
Related terms
Out: group - A social group toward which an individual feels opposition, rivalry, or hostility.
Social identity: The portion of an individual's self-concept derived from perceived membership in a relevant social group.
Group dynamics: The patterns of interaction between groups and individuals, including how they communicate, influence each other, and coalesce around shared goals