Psychologists most commonly use the term "identity" to describe ''personal identity'', or the idiosyncratic things that make a person unique. Meanwhile, sociologists often use the term to describe ''social identity'', or the collection of group memberships that define the individual. However, these uses are not proprietary, and each discipline may use either concept. | Psychologists most commonly use the term "identity" to describe ''personal identity'', or the idiosyncratic things that make a person unique. Meanwhile, sociologists often use the term to describe ''social identity'', or the collection of group memberships that define the individual. However, these uses are not proprietary, and each discipline may use either concept. |