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[Psychometrics of the Eschelle questionnaire to measure self efficacy in work capacity]
Valérie Albert1, Marie-France Coutu, Marie-José Durand
1Programme des sciences cliniques de I'Université de Sherbrooke, Centre d'Action en Prévention et Réadaptation de I'Incapacité au Travail (CAPRIT), Campus de Longueuil--Université de Sherbrooke, 150 place Charles-Le Moyne, 9e étage, Longueuil (Qc) J4K 0A8. Valerie.Albert@USherbrooke.ca
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'efficacité 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.
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