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Peer reviewedMarsh, Herbert W. – Journal of Educational Psychology, 1989
This analysis of 12,266 responses to the 3 Self-Description Questionnaires (which measure dimensions of self-concept in preadolescence) examined age and sex effects during preadolescence and early adulthood and alternative operationalizations of the proposition that self-concept becomes more differentiated with age. Well-defined factor structures…
Descriptors: Adolescent Development, Adolescents, Age Differences, Comparative Testing
