INTRODUCTION: Self-efficacy with regard to work capacity is one of the determinants of return to work among workers with musculoskeletal disorders (MSDs). To our knowledge, the self-administered questionnaire named Echelle de mesure du sentiment d'efficacit? personnelle is the only work-specific scale available in French; however its psychometric properties have not been extensively studied.PURPOSE: To estimate the internal consistency and factorial structure of the scale.METHODS: The questionnaire has been administered to 36 workers in prolonged work disability due to a musculoskeletal injury during the chronic pain phase.RESULTS: Internal consistency is satisfactory (Cronbach's alpha: 0.925). Factor analysis reveals a one-dimensional structure that explains 65.5% of the variance.PRACTICE IMPLICATIONS: The results support the use of the scale for clinical practice and research. However, the evaluation of self-efficacy concerning work capacity still requires triangulation with other observations to increase conclusion accuracy.
Adult Disabled Persons