Development and validation of the new somatomorphic matrix-male : A figural rating scale for measuring male actual-ideal body discrepancy

Journal article


Talbot, Daniel, Smith, Evelyn, Cass, John and Griffiths, Scott. (2019). Development and validation of the new somatomorphic matrix-male : A figural rating scale for measuring male actual-ideal body discrepancy. Psychology of Men and Masculinity. 20(3), pp. 356-367. https://doi.org/10.1037/men0000165
AuthorsTalbot, Daniel, Smith, Evelyn, Cass, John and Griffiths, Scott
Abstract

This study aimed to develop and examine the validity evidence of the New Somatomorphic Matrix–Male (NSM-M) as a measure of actual–ideal body discrepancy. The NSM-M is a visual matrix of 34 male bodies that vary along two dimensions: body fat percentage (range = 4–40%) and muscularity (fat-free mass index; range = 16.5–30 kg/m2; 36.4–66.1 lbs/m2). In Study 1, participants were 2,733 sexual minority males recruited via a geosocial networking smartphone application. Participants selected their “actual” and “ideal” bodies on the NSM-M and additionally completed questionnaires measuring body dissatisfaction, eating disorder symptoms, quality of life, and anabolic steroid use. In Study 2, participants were 33 males from a community sample. They completed the NSM-M across two sessions, 7–14 days apart. NSM-M scores demonstrated concurrent and convergent validity as a measure of male body dissatisfaction. In addition, NSM-M scores discriminated between steroid users and nonusers, and between body mass index categories. The NSM-M also demonstrated sound test–retest reliability across a 7- to 14-day period. In sum, the NSM-M is validated figural measure of male actual–ideal body discrepancy with notable strengths, including fast administration time and enhanced ecological validity. (PsycINFO Database Record © 2020 APA, all rights reserved).

Year2019
JournalPsychology of Men and Masculinity
Journal citation20 (3), pp. 356-367
PublisherAmerican Psychological Association
ISSN1524-9220
Digital Object Identifier (DOI)https://doi.org/10.1037/men0000165
Scopus EID2-s2.0-85049567468
Page range356-367
Publisher's version
License
All rights reserved
File Access Level
Controlled
Output statusPublished
Publication dates
Online09 Jul 2018
Publication process dates
Accepted22 Mar 2018
Deposited29 May 2025
Additional information

© 2018 American Psychological Association.

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