Introducing a short version of the physical self description questionnaire: new strategies, short-form evaluative criteria, and applications of factor analyses.

Journal article

Based on the Physical Self Description Questionnaire (PSDQ) normative archive (n = 1,607 Australian adolescents), 40 of 70 items were selected to construct a new short form (PSDQ-S). The PSDQ-S was evaluated in a new cross-validation sample of 708 Australian adolescents and four additional samples: 349 Australian elite-athlete adolescents, 986 Spanish adolescents, 395 Israeli university students, 760 Australian older adults. Across these six groups, the 11 PSDQ-S factors had consistently high reliabilities and invariant factor structures. Study 1, using a missing-by-design variation of multigroup invariance tests, showed invariance across 40 PSDQ-S items and 70 PSDQ items. Study 2 demonstrated factorial invariance over a 1-year interval (test-retest correlations .57-.90; Mdn = .77), and good convergent and discriminant validity in relation to time. Study 3 showed good and nearly identical support for convergent and discriminant validity of PSDQ and PSDQ-S responses in relation to two other physical self-concept instruments.

Authors: Marsh, H; Martin, A; Jackson, S

• Publication status: Published
• Journal: Journal of sport and exercise psychology
• Volume: 32
• Issue: 4
• Pages: 438-482
• Publication date: 2010-08-01
• EISSN: 1543-2904
• ISSN: 0895-2779
• Language: English
• Keywords: Reproducibility of Results; Adolescent; Questionnaires; Self Concept; Exercise; Female; Australia; Physical Fitness; Child; Male; Psychometrics; Sports; Body Image; Spain; Factor Analysis, Statistical; Israel; Humans; Longitudinal Studies; Psychological Tests