Social Identity Theory
This theory addresses the ways in which people perceive and categorize themselves. According to social identity theory, individuals form self-conceptions that are based on two parts: 1) personal or self-identity, and 2) collective identity. Personal or self-identity refers to our unique, personal qualities such as our beliefs, our abilities and skills, etc. The collective self includes all the qualities that arise from being part of a society, culture, family, groups, clubs, etc. For example, you may identify yourself as a protestant, male, football player, who is very popular with people at school.