Psychometric properties of the Barriers Self-Efficacy Scale for Physical Activity-Korean

This study examined the psychometric properties of the Barriers Self-Efficacy Scale-Physical Activity for Korean -speaking adults with osteoarthritis at risk for metabolic syndrome (N = 150). Factor analysis identified three dimensions of the Korean Barriers scale, explaining 65.9 % of the total variance. Confirmatory factor analysis indicated that the structural validity adequately fits the data. Construct validity confirmed significant associa-tions between the amount of physical activity and psychological variables. The test-retest reliability was 0.87; the alpha was 0.90. The standardized response mean (0.497) indicated responsiveness to medium-magnitude change. The Korean Barriers scale can assess self-efficacy to engage in regular physical activity in clinical settings.