Adaptation of the Mental Wellness and Illness Scale to Turkish: A Validity and Reliability Study

Aim: This study aims to evaluate the reliability and validity of the Turkish version of the Mental Well-Being and Illness Scale. Material and Method: This methodological study was conducted with n=233 participants. Participants were asked demographic questions, the World Health Organization-5 Well-being Index and the Mental Well-being and Illness Scale translated into Turkish. The validity of the instrument was confirmed by content validity index, explanatory and confirmatory factor analyses, and concurrent validity. Internal consistency was assessed by Cronbach Alpha, halving, and concurrent validity calculations. Results: The Turkish version of the Mental Wellbeing and Illness Scale has 20 items as in the original scale. Confirmatory factor analysis confirmed the three-dimensional structure of the scale. Model fit indices showed excellent model-data fit. Conclusion: The findings confirmed that the Mental Well-being and Illness Scale is valid and reliable. It is recommended to use the Mental Well-being and Illness Scale as an appropriate tool for monitoring the mental status of the Turkish population.