Validity and Reliability of Persian Version of Volition in Exercise Questionnaire among Students of Kashan University of Medical Sciences

Background: The present study was conducted to develop and validate the Persian version of the Volition in Exercise Questionnaire (VEQ). Methods: The statistical population of the analytical cross-sectional    research was the students of Kashan University of Medical Sciences in ۲۰۲۲, selected using two-stage cluster random sampling.  Confirmatory factor analysis was used to fit the measurement model and factors obtained from exploratory factor analysis.The reliability of the questionnaire was assessed using Cronbach's alpha coefficient and intraclass correlation coefficient (ICC) and its validity was evaluated using face validity, content validity, and construct validity.The SPSS software version ۲۴ and AMOS software version ۲۴ were used for data analysis. Results: Descriptive findings showed that ۳۱۰ questionnaires were completed (mean age: ۲۱.۹۴ ± ۳.۰۳ years).CVR, CVI, and impact score were calculated for each question. After calculating the CVR coefficients, all questions had a CVR above ۰.۹۹. All questions had a CVI above ۰.۷۹. In quantitative face validity, all questions had an impact score of ≥ ۱.۵ and therefore remained in the questionnaire. Exploratory and confirmatory factor analysis led to the extraction of five factors and the model had a good fit and the values and parameters of the model were statistically significant (χ۲/df: ۲.۱۵, CFI: ۰.۹۱۵, TLI: ۰.۸۸۴ RMSEA: ۰.۰۷). The results showed that the overall Cronbach's alpha coefficient calculated for the tool and its factors were acceptable (۰.۸۹۴). Also, the stability of the questionnaire with a ۲-week interval showed satisfactory results (overall ICC: ۰.۵۷۶ Conclusion:   The results confirmed the measurement model and showed that the obtained factors had a favorable fit as the original version.

کلیدواژه ها:

Validity ، Reliability ، Volition ، Exercise ، Questionnaire