Categorization is the cognitive process by which people detect differences and similarities among members of groups. According to categorization theory (Tajfel 1981), social categorization process leads to stereotypes, a relatively enduring system of interrelated concepts that inform perceptions of members of certain groups (McGarty et al. 2002, p. 7). Stereotypes help in explaining the social world by saving time and effort and by accentuating characteristics that are important from the perceiver’s viewpoint (McGarty et al. 2002).