Development and initial psychometric evaluation of the Body Image Matrix of Thinness and Muscularity – Female Bodies

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Title: Development and initial psychometric evaluation of the Body Image Matrix of Thinness and Muscularity – Female Bodies
Authors: Steinfeld, Beate
Hartmann, Andrea
Waldorf, Manuel
Vocks, Silja
ORCID of the author: https://orcid.org/0000-0002-6251-3763
https://orcid.org/0000-0002-7366-679X
https://orcid.org/0000-0001-8498-9466
Abstract: Background: Despite evidence that thinness and muscularity are part of the female body ideal, there is not yet a reliable figure rating scale measuring the body image of women which includes both of these dimensions. To overcome this shortcoming, the Body Image Matrix of Thinness and Muscularity - Female Bodies (BIMTM-FB) was developed. Methods: The objective of this study is to analyze the psychometric properties of this measure. N = 607 non-clinical women and N = 32 women with eating disorders answered the BIMTM-FB as well as instruments assessing eating disorder symptoms and body image disturbance in order to test the convergent validity of the BIMTM-FB. To assess test-retest reliability, a two-week interval was determined. Results: The results indicated that the body-fat dimension of the BIMTM-FB correlates significantly with the Contour Drawing Rating-Scale, the Drive for Leanness Scale (DLS) and the Body Appreciation Scale, while the muscularity dimension of the BIMTM-FB was significantly associated with the DLS and the Drive for Muscularity Scale, proving the convergent validity of the BIMTM-FB. High coefficients of test-retest reliability were found. Moreover, the BIMTM-FB differentiated between the clinical sample and the non-clinical controls. Conclusions: The BIMTM-FB is a figure rating scale assessing both thinness and muscularity as part of the female body ideal. Due to its high reliability and validity, the BIMTM-FB can be recommended in research and practice.
Citations: Steinfeld, B., Hartmann, A.S., Waldorf, M. and Silja Vocks (2020): Development and initial psychometric evaluation of the Body Image Matrix of Thinness and Muscularity – Female Bodies. J Eat Disord 8, 75.
URL: https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-202106074977
Subject Keywords: Body image; Body fat; Eating disorders; Figure rating scale; Women; Muscularity
Issue Date: 1-Dec-2020
License name: Attribution 4.0 International
License url: http://creativecommons.org/licenses/by/4.0/
Type of publication: Einzelbeitrag in einer wissenschaftlichen Zeitschrift [article]
Appears in Collections:FB08 - Hochschulschriften
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