Psychometric Properties of the Persian Version of the Warwick-Edinburgh Mental Wellbeing Scale (Pr-WEMWBS)

Abstract

Background: The Warwick-Edinburgh Mental Well-being Scale (WEMWBS) is one of the most important scales for measuring mental well-being, and it has been translated into various languages. Objectives: This study aims to examine the psychometric properties of the Persian version of the Warwick-Edinburgh Mental Well-being Scale (Pr-WEMWBS). Methods: Face and content validity, exploratory factor analysis (EFA), confirmatory factor analysis (CFA), Cronbach’s alpha coefficient, and intraclass correlation coefficient (ICC) were assessed. The WEMWBS was translated using the forward-backward translation method. Eleven employees and eight experts evaluated the face and content validity of the scale. A total of 193 employees were recruited for construct validity, and 36 employees were involved in the test-retest reliability assessment. Results: The impact score for all items was above 4.30. In the EFA, the Kaiser–Meyer–Olkin (KMO) value was 0.87, and Bartlett's test (χ2 = 1216.28, P ≤ 0.000) confirmed the adequacy of the sample size. Using direct Oblimin rotation, three latent factors were extracted with eigenvalues greater than 1. In the CFA, the model fit summary indices were satisfactory (GFI = 1.000, RMSEA = 0.10, CFI = 1.00, CMIN/DF = 2.91, PNFI = 0.673, PCFI = 0.714). Cronbach's alpha coefficient was 0.901. The mean ICC was 0.889 (range: 0.863 to 0.912). Conclusions: The Pr-WEMWBS demonstrates good validity and reliability across most psychometric indices, making it suitable for use in Persian-speaking communities.