Published online by Cambridge University Press: 21 November 2025
The 15-item Drive for Muscularity Scale (DMS; McCreary & Sasses, 2000) is a widely used, non-clinical measure of people’s desire to be more muscular and the actions they take to achieve that. The DMS can be administered online or in-person to adolescents or adults and is free to use in any setting. This chapter first discusses the development of the DMS and then provides evidence of its psychometrics. Both exploratory and confirmatory factor analyses have shown that the DMS has a single-factor structure for both men and women, as well as a 2-factor structure for men. There is mixed evidence for structural invariance. Internal consistency reliability, test-retest reliability, convergent validity, discriminant validity, and incremental validity support the use of the DMS. Next, this chapter provides the DMS items in their entirety, instructions for administering the DMS to participants, the item response scale, and the scoring procedures. There are no abbreviated forms; however, links to many known translations are provided. Logistics of use, such as permissions, copyright, and contact information, are provided for readers.
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