Abstract: Objective: To develop the Physical Activity Self-efficacy Scale (PASS) for Chinese college students and examine its reliability and validity. Method: According to the definition of physical activity self-efficacy, the items of the scale were developed on the basis of interview. The data were ob-tained through three measurements, which was respectively used for exploratory factor analysis (n = 195), validity analysis (n = 391) and test-retest reliability (n = 34). Results: The final scale had 10 items and 2 dimensions, including situat...