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Development and validation of the new somatomorphic matrix-male : A figural rating scale for measuring male actual-ideal body discrepancy
Talbot, Daniel Smith, Evelyn Cass, John Griffiths, Scott
Talbot, Daniel
Smith, Evelyn
Cass, John
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).
Keywords
Date
2019
Type
Journal article
Journal
Psychology of Men and Masculinity
Book
Volume
20
Issue
3
Page Range
356-367
Article Number
ACU Department
School of Behavioural and Health Sciences
Faculty of Health Sciences
Faculty of Health Sciences
Relation URI
Source URL
Event URL
Open Access Status
License
All rights reserved
File Access
Controlled
Notes
© 2018 American Psychological Association.