Psychometric Properties of the Persian Version of Cognitive Fusion Questionnaire-Chronic Illness in Multiple Sclerosis

Background: Cognitive fusion is a substantial variable of acceptance and commitment therapy (ACT). Recently, various instruments have been developed to assess cognitive fusion, including a version relevant to medical illness referred to as the Cognitive Fusion Questionnaire-Chronic Illness (CFQ-CI). Objectives: This study aimed to assess the validity and reliability of the Persian version of CFQ-CI in multiple sclerosis (MS) patients. Methods: In a cross-sectional study, the Persian version of CFQ-CI and several other measures that assessed self-compassion, depression, and social anxiety symptoms were administered on 195 MS patients in Shiraz Emam Reza Clinic. Exploratory factor analysis (EFA), internal consistency, and convergent validity were used for data analysis. Results: EFA revealed a 1-factor model. The Cronbach αwas 0.92. As to the convergent validity, CFQ-CI had positive associations with measures of depression and social anxiety and negative associations with self-compassion. Conclusions: Overall, this research supports the psychometric properties of the Persian version of CFQ-CI.