Reliability and Validity of the Short Version of Perceived Benefits and Barriers Scale for Physical Activity

Abstract

Introduction: The purpose of this study was to promote a short version of the perceived benefits and barriers scale (SVPBBS), verify its reliability and validity in college teachers, and provide a reliable and convenient tool for domestic research on the benefits and barriers of physical activity. Methods: A SVPBBS was translated, SVPBBS-CN was used to test 553 teachers for project analysis, reliability, and validity test. One hundred thirty college teachers were retested four weeks later, and the criterion validity was verified using exercise benefits and barriers scale. Results: Project analysis showed that each item was significantly correlated with the subscale score and total amount score (R = 0.526–0.726, P < 0.001). The Cronbach’s alpha of the total SVPBBS-CN scale was 0.844. The results of confirmatory factor analysis supported a two-dimension structure. The fitting indexes were χ2 (429.809), χ2/df (2.9043), P < 0.001, NFI (0.960), CFI (0.973), IFI (0.973), TLI (0.966) and RMSEA (0.059). The Cronbach’s alpha of the two subscales of perceived benefits and barriers were 0.894 and 0.819, respectively. The retest reliability after four weeks, the Cronbach’s alpha for the total scale and two subscalesare all qualified The results showed that correlation coefficients between the total score of SVPBBS-CN and EBBS-CN and between the score of subscales ranged from 0.612 to 0.922 (p < 0.01). Conclusion: The SVPBBS-CN has good reliability and validity and can be used as a tool to evaluate perceived benefits and barriers.

Keywords

• perceived benefits and barriers scale
• reliability
• validity