Development and validation of the Eight-Dimensional Wellness Assessment
DOI:
https://doi.org/10.64838/jmht.2025.278890Keywords:
assessment tool, mental illness, psychometric property, wellnessAbstract
Objective: To develop and examine the psychometric properties of a comprehensive wellness assessment in the Thai context.
Methods: The study was conducted in three phases. Phase 1 involved the development of a holistic wellness assessment based on a review of relevant literatures. Phase 2 was a pilot test conducted with 30 participants with psychiatric disorders and 30 without, to assess content validity, face validity, reliability, and item analysis. Phase 3 evaluated the psychometric properties in 248 participants with psychiatric disorders and 280 without. Construct validity was analyzed using confirmatory factor analysis. Reliability was tested using Cronbach’s alpha coefficient and corrected item-total correlation (CITC).
Results: The first draft of the questionnaire consisted of 111 items. After the pilot study, 89 items remained. After testing psychometric properties, the final draft of the Eight-Dimensional Wellness Assessment consisted of 73 items, encompassing physical, psychological, social, environmental, spiritual, financial, occupational/educational, and access-to-welfare dimensions. The overall Cronbach’s alpha was 0.968, with subscale alphas ranged from 0.628 to 0.926. The CITC by dimension ranged from 0.289 to 0.714. Confirmatory factor analysis indicated that the model demonstrated a good fit with the empirical data.
Conclusion: The Eight-Dimensional Wellness Assessment demonstrated acceptable to excellent psychometric properties and can be used to evaluate wellness among individuals both with and without mental disorders.
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