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The Body Shape Questionnaire Is Not Invariant Across Sex: Evidence From Portuguese-Speaking University Students
journal contribution
posted on 2023-08-30, 16:05 authored by Wanderson Roberto da Silva, Viren Swami, Angela N. Neves, João Marôco, Christopher Ochner, Juliana A. D. B. CamposThe Body Shape Questionnaire (BSQ) is a widely-used measure of body shape concerns that was originally designed for use with women but has more recently been used with boys and men. The latter use may be problematic, given that no previous study has demonstrated sex invariance for BSQ scores. To determine the extent to which BSQ scores are sex invariant, we asked Portuguese-speaking women (n = 1,613) and men (n = 871) to complete the full BSQ (34-items). Confirmatory factor analysis (CFA) indicated that a hypothesized 32-item model of BSQ scores and shorter versions had acceptable fit indices in women and men, separately. However, multi-group CFA showed that these BSQ model scores had configural but not metric, scalar, or strict sex invariance. Differential item analysis indicated significant item-functioning differences on 19 of the 32 retained BSQ items. Thus, BSQ scores are not sex invariant, making problematic the results of previous studies that have compared latent BSQ scores across sex.
History
Refereed
- Yes
Volume
126Issue number
3Page range
462-476Publication title
Perceptual and Motor SkillsISSN
1558-688XExternal DOI
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SAGEFile version
- Accepted version
Language
- eng
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Legacy posted date
2019-03-04Legacy creation date
2019-03-01Legacy Faculty/School/Department
Faculty of Science & EngineeringUsage metrics
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