People represent their group memberships as arranged in overlapping or nested structures

Evidence

Individuals’ representations of their identities can involve perceiving some groups as isolated from other groups while perceiving other sets of groups as being highly overlapping (Roccas & Brewer, 2002). Of primary interest in this chapter are nested category contexts, where two categories are salient, but one category is perceived to be a subset of a larger superordinate category. — Roderick M. Kramer, Geoffrey J. Leonardelli, Robert W. Livingston, Social Cognition, Social Identity, and…, 659

Categorization

• DEFINE: Defines nested category contexts: subordinate categories perceived as subsets of superordinate ones, contrasted with overlapping but non-nested sets.
• corroborated: 2 independent passages support this claim — Roderick M. Kramer, Geoffrey J. Leonardelli, Robert W. Livingston, Social Cognition, Social Identity, and…, 659
• XREF: connects to: Mixed individuals’ multiple ingroups are simultaneously present together — Anna X. Huang, Jacqueline M. Chen, and Juliane Degner, Being One or the Other, Both or…, 57