Rasch Rating Scale Analysis of the Arabic Version of the Physical Activity Self-Efficacy Scale for Adolescents: A Social Cognitive Perspective

Abstract

This study uses the Rasch rating scale analysis within the framework of the social cognitive theory to examine four psychometric properties of the Arabic version of the Physical Activity Self-efficacy Scale for Adolescents (PASESA-Av): 1) item technical quality to evidence content validity; 2) unidimensionality structure to evidence structural validity; 3) rating scale functioning to evidence substantive validity; and 4) person and item separation and reliability. The analyses showed that the PASESA-Av items represented the physical activity self-efficacy trait adequately. The PASESA-Av demonstrated good fit to the Rasch model and formed a unidimensional structure. The PASESA-Av response categories advanced monotonically. The PASESA-Av demonstrated satisfactory person and item separation and reliability.