“…Perceivers categorize by subgroup especially when they have both knowledge and involvement via familiarity and social identity. In general, people identify more subgroups for their in-group than their out-group (see Park & Rothbart, 1982), whether their in-group consists of young people (Brewer & Lui, 1984), ethnic or racial groups (Huddy & Virtanen, 1995;Judd, Park, Ryan, Brauer, & Kraus, 1995), business or engineering students (Park & Judd, 1990), a fraternity or sorority (Wallace, Lord, & Ramsey, 1995) or student athletes (Wallace et al, 1995). The in-group social identity provides a sense of positive distinctiveness that also motivates subgrouping to the extent that one considers oneself typical of the subgroup (Brewer & Lui, 1984;Huddy & Virtanen, 1995;Wallace et al, 1995).…”