University of Worcester Worcester Research and Publications

Evaluating Validity and Test–retest Reliability in Four Drive for Muscularity Questionnaires

Tod, D., Morrison, T.G. and Edwards, Christian (2012) Evaluating Validity and Test–retest Reliability in Four Drive for Muscularity Questionnaires. Body Image, 9 (3). pp. 425-428. ISSN 1740-1445

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The current study assessed relationships among four commonly used drive for muscularity questionnaires, along with their 7 and 14 day test–retest reliability. Sample 1 was comprised of young British adult males (N = 272; MAGE = 20.3) who completed the questionnaires once. Sample 2, a group of young British adult males (N = 54, MAGE = 19.3), completed the questionnaires three times spaced 7 and 14 days apart. Correlations among Sample 1 ranged from .20 to .82 providing evidence for concurrent and discriminant validities. Evidence for test–retest reliability emerged with intraclass correlations ranging from .78 to .95 (p < .001) and generally nonsignificant t-tests (p > .05). Overall, the data support the psychometric properties of the drive for muscularity inventories; however, the shared variance (35–67%) hints that refinement is possible.

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Uncontrolled Keywords: Drive for muscularity, Body image, Psychometrics,Concurrent validity, Discriminant validity, Test–retest reliability
Subjects: H Social Sciences > H Social Sciences (General)
Divisions: Academic Departments > Institute of Sport and Exercise Science
Depositing User: Christian Edwards
Date Deposited: 28 Sep 2012 09:27
Last Modified: 26 Jul 2015 10:13

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