In-group bias refers to the tendency of individuals to favor members of their own group over those from other groups. It involves showing more positive attitudes and providing greater support towards individuals who belong to the same social group as oneself.
Related terms
Out-group: The out-group refers to any group that an individual does not belong to. It is often compared against one's in-group.
Stereotyping involves making generalizations about individuals based on their membership in certain social groups without considering individual differences.