Development of the Muscle Mass Obtainment Inventory
Year: 2018
Type: article
Abstract: Introduction: Muscle Dysmorphia (MD) is a sub-type of a body dysmorphic disorder where symptoms include dissatisfaction with current muscular appearance and the perception of small stature, despite a mesomorphic physique. The purpose of this study was to develop a measurement instrument of MD using empirical data reduction techniques. Methods: A set of 325 items were constructed by assessing commonalities with various dimensions/models of MD and reviewed by subject matter experts. Following subject matter review, a 180-item survey was administered to 827 college aged participants for data reduction. A Principle Axis Factor analysis with Oblimin and Kaiser normalization rotation was used to examine the factor structure of the 180-item survey.Results: A final 85-item, nine factor scale emerged with factor loadings ≥.50 and reliability values ≥.80 called the Muscle Mass Obtainment Inventory (MMOI). Nine factors exist within this new scale with alpha ranging from .809 to .962. The composite alpha for all nine dimensions is .912.Conclusions: The MMOI is an 85-item questionnaire with nine dimensions: MD internalization, Risky Steroid Use, Desire for Muscle Mass, Dietary Supplementation, Idealization of the Perfect Body, Body and Sport, Workout Priority, Physique Concern, and Social Constraints.
Institution: University of Tulsa
Language: English
Subfield: Clinical Psychology
Field: Psychology
Domain: Social Sciences
Open Access status: diamond
OpenAlex ID: W3204205960