Reliability and validity of stroke self-efficacy questionnaire: a Vietnamese version

INTRODUCTION: Self-efficacy significantly influences the recovery process following a stroke. A reliable and valid measurement tool is of paramount importance for self-efficacy assessment. The stroke self-efficacy questionnaire (SSEQ) is a specialized measurement tool designed for post-stroke patients. AIM: The study was conducted to translate the English SSEQ version into and culturally adapt it to the Vietnamese version and to evaluate the reliability and validity of the latter. MATERIALS AND METHODS: The translation and cultural-adaptation process included translation-back steps according to Beaton's guidelines, content validity index (CVI) was assessed on 10 experts, face validity via pilot on 10 patients, factor analysis on 305 patients, and reliability assessment on 80 replications. RESULTS: The SSEQ-V achieved CVI = 100%, all patients clearly assessed the form and content suitability, internal reliability reached Cronbach's alpha >0.95, and test-retest reliability reached ICC = 0.979. Factor analysis supported a two-factor structure including daily functional activities and self-management with high fit indices. CONCLUSION: The SSEQ-V should be applied in post-stroke patients to develop self-management intervention programs to improve their recovery in Vietnam.