Are the Male Body Dissatisfaction and Drive for Muscularity scales reliable and valid instruments?

The Drive for Muscularity Scale and Male Body Dissatisfaction Scale were developed for use with men and correspond to measures of drive for thinness and body dissatisfaction in women. The psychometric properties of these measures were evaluated in a sample of 655 Italian men, who completed other 11 measures also. Both scales demonstrated excellent internal consistency and temporal stability as well as criterion-related and concurrent validity. Both measures distinguished between men with high and low levels of disordered eating. Confirmatory factor analysis replicated the unidimensional factor structure of both scales. Directions for future research are discussed.