At its most basic level, Social Identity Theory asserts that individuals’ social identities and self-concepts are formed through group membership, which is facilitated through in-group favoritism and sometimes outgroup derogation (Tajfel, 1981, 1982). The theory suggests that individuals categorize themselves into groups they recognize in their social worlds and that these group memberships, along with their associated values and emotions, form the basis for social identities (Brewer & Gardner, 1996; Edwards & Harwood, 2003; Lorenzi-Cioldi, 1988; Tajfel, 1978; Tajfel & Turner, 1986 cited by Hoewe, J.
