title: Newcomers to Social Categories: Longitudinal Predictors and Consequences of Ingroup Identification.
abstract: In the present article, we propose a dynamic model of the longitudinal predictors and consequences of ingroup identification among newcomers to a social category. We hypothesize a shift in the relative importance of intragroup affiliation as compared with intergroup differentiation for ingroup identification. Two longitudinal studies confirm the theoretical model assessing cross-sectional and longitudinal relationships between ingroup identification and interpersonal attraction, self-prototypicality, and ingroup favoritism at three measurement points during the first 4 months of group membership in two different social categories. Results demonstrate that in the initial phases of group membership, ingroup identification is mainly determined by intragroup affiliation (interpersonal attraction) and that ingroup favoritism starts playing a relevant role later on, when category membership has been established.
authors.affiliation: University of Twente, Enschede, the Netherlands Utrecht University, the Netherlands r.vanveelen@uu.nl.
authors.forename: Ruth
authors.initials: R
authors.lastname: van Veelen
authors.affiliation: Munich, Germany.
authors.forename: Kerstin Karen
authors.initials: KK
authors.lastname: Eisenbeiss
authors.affiliation: University of Groningen, the Netherlands.
authors.forename: Sabine
authors.initials: S
authors.lastname: Otten
mesh_terms: D000293:Adolescent; D000328:Adult; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D008137:Longitudinal Studies; D008297:Male; D008960:Models, Psychological; D012929:Psychological Distance; D012649:Self Concept; D012933:Social Identification; D055815:Young Adult
keywords: ingroup favoritism; ingroup identification; interpersonal attraction; newcomers; self-prototypicality