French cross-cultural adaptation and validity of the Moorong Self-Efficacy scale: the MSES-FR, a measure of Self-Efficacy for French people with spinal cord injury

Purpose To adapt the Moorong Self-Efficacy Scale (MSES) in the French language and determine its psychometric proprieties. Materials and methods After a back-translation process, an expert committee was solicited to develop the French Self Efficacy Scale, thanks to a Delphi method, regarding theoretical framework and concepts explored. A total of 201 patients with SCI were included to explore internal consistency, internal and external structure validity assessed with the General Self-Efficacy scale, MOS Health Survey Short-Form, Hospital Anxiety and Depression Scale, Way of Coping Check-list, Perceived Stress Scale, Social Support Questionnaire, Self-Esteem questionnaire, and Satisfaction With Life Scale. The retest was performed 4 days later with a randomized version of the MSES-Fr. Results The 16 items are distributed in 3 different dimensions: Interpersonal Self-Efficacy (4 items), Instrumental Self-Efficacy (4 items) and Participation Self-Efficacy (6 items). The internal consistency was excellent (Cronbach alpha = .87). Results evidenced significant correlations with the MSES-Fr and other related psychological constructs (self-esteem, mood, quality of life). Reproducibility was good for the total score of the MSES-Fr (ICC = .74) and for the 3 dimensions of the scale. Conclusions The MSES-Fr is a valid and reliable tool to assess self-efficacy in persons with spinal cord injury.