Psychometric Evaluation of the Short Form of Commitment to a Plan of Action Scale for Stretching Exercise among the Office Employees Based on HPM

Aims: Commitment to a plan of action key factors is critical for stretching exercise predicting. However, commitment to a plan of action in stretching exercise across the throughout working conditions is far difficult in Iran; there is no measurement to evaluate commitment to a plan of action among workplace office employees. This study aimed at investigating the short form of confirmatory factor analysis commitment to a plan of action scale for stretching exercise predicting among based on health promotion model (HPM). Materials and Methods: Using multistage cluster sampling, ۳۸۵ office employees from Shahid Beheshti University of Medical Sciences of Iran were selected through on a short form of commitment to a plan of action Scale. Exploratory Factor Analysis (EFA), Confirmatory Factor Analysis (CFA) and Cronbachchr('۳۹')s alpha were also used. Findings: The mean age of the office employees was ۳۹.۴±۷.۷۶ years. CVI and CVR of each question was >۰.۷. The result of EFA confirmed one factor or component with the main component technique (commitment to a plan of action) with ۷۱.۸% cumulative variance and KMO was ۸۷.۲% (p<۰.۰۰۱). This was the good fit index in CFA. The reliability was also explanatory. In the area of CFA, the result showed REMSEA=۰.۰۴۶, GFI=۰.۹۰۷, AGFI=۰.۸۱۴, confirmed with Cronbach’s alpha (α=۸۵.۸%) and [ICC =۰.۷۴; ۹۵% CI (۰.۶۲, ۰.۷۴)]. Conclusion: This study approved the short form of commitment to a plan of action scale for stretching exercise. However, more advice is provided to ensure a reliable and valid tool for realizing stretching exercise behaviors.

Keywords:

Reliability and Validity , Exercise , Muscle , Skeletal , Public Health , Health Promotion