A Scale Development for Assessing the Drive for Muscularity among Pakistani Bodybuilders

Objective: The study was devised to develop the indigenous scale of drive for muscularity among Pakistani bodybuildersMethod: To explore the manifestation of drive for muscularity phenomenological approach was used, in which open ended question was asked from the 35 gym user men from different gyms. A list of the 28 most frequently reported items after initial screening was generated. For empirical validation four expert coaches of the gym were approached and then pilot study was administered. In main study 211 bodybuilders were included for test the psychometric properties of indigenous scale.Results: Based on Eigen value > 1, the 26 items were extracted. Exploratory factor analysis revealed 2 factors of developed scale. The descriptive label was assigned to each factor based on commonality of items termed as "muscle enhancing behaviors" and "thoughts and desires" related muscular body. A significant positive correlation was found between Drive for Muscularity Inventory and Drive for Muscularity Scale. Drive for Muscularity Inventory was also found to be a valid and reliable scale (test retest reliability =0.82 and split half reliability = 0.87) with acceptable psychometric properties. Conclusion: Indigenous developed Drive for muscularity scale found to have high internal consistency, construct validity, split-half reliability, and test-retest reliability.