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This measure assesses the extent to which an individual experiences psychological connection and perceived similarity with a salient social group. The Group Identification Questionnaire is commonly used to characterize subjective group belonging and self-association in research and applied assessment contexts.
The questionnaire contains 14 items and typically requires about 3 minutes to complete. Respondents provide ratings reflecting their perceived closeness to the group and the degree to which group membership is integrated into their self-concept, consistent with social identity theory frameworks (Tajfel & Turner). In practice, the Group Identification Questionnaire can support the description of group dynamics and inform hypotheses about interpersonal behavior and attitudes within a collective.