The Psychometrics of Mental, Physical, and Spiritual Well-being Scale and Its Subscales among the Patients with Type 2 Diabetes Mellitus

Health concepts is influenced by complex of physical, mental, social, spiritual, cultural, and environmental factors. This study aimed to assess the psychometric properties of Persian version of mental, physical, and spiritual well-being scale and its subscales among the patients with type 2 diabetes mellitus.
After reviewing the available instruments in this field and considering cultural and social condition of Iranian community, Vella-Brodrick and Allen’s mental, physical, and spiritual standard well-being scale and its subscales was selected, translated, and back translated to Persian. This cross-sectional study conducted on 500 patients with type 2 diabetes mellitus. Sampling was performed using cluster and multistage sampling method. Construct validity was determined using explanatory factor analysis. Internal consistency was ascertained using Cronbach’s alpha. The stability was confirmed using intraclass correlation coefficients. The suitability of the data analysis was tested using the Bartlett's chi-square test of sphericity, and the sampling adequacy using Kaiser-Meyer-Olkin (KMO) test.
Findings: Total Cronbach’s alpha was 0.58. 22 question in 3 determined areas explained 42.71 of the total variance. Cumulative variances of all the different subscales were more than 0.5 which showed the credential convergence.
This study results revealed that psychometric properties of Persian version of Vella-Brodrick and Allen’s mental, physical, and spiritual well-being scale and its subscales were borderline and not at optimal level. It seems that the scale should be assessed again after making changes in demographic characteristics or target group.