Psychometric Properties of a Scale Measuring Patients' Perceptions Regarding Physical Activity Counseling by Physicians.

This study developed a scale measuring patients' perceptions regarding physical activity (PA) counseling by physicians. Confirmatory factor analysis and multiple linear regression analysis were used to assess psychometric properties. The first factor extracted was "PA recommendation," which accounted for a variance of 45.1% out of total variance of 76.3% and comprises 5 items. The final scale yielded satisfactory psychometric properties including internal consistency (Cronbach's α = 0.75), convergent validity, discriminant validity, and predictive validity. Nine (9) items that makeup two factors (i.e., PA recommendation and follow-up) are potential measures of patients' perceptions regarding PA counseling by physicians in healthcare.