Korean J Hosp Palliat Care.
2022 Sep;25(3):110-120. 10.14475/jhpc.2022.25.3.110.
Cross-Cultural Validation of the McGill Quality of Life Questionnaire-Revised (MQOL-R), Korean Version; A Focus on People at the End of Life
- Affiliations
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- 1College of Nursing, Sahmyook University, Seoul, Korea
- 2College of Nursing, Department of Nursing, Kangwon National University, Samcheok, Korea
- KMID: 2532900
- DOI: http://doi.org/10.14475/jhpc.2022.25.3.110
Abstract
- Purpose
The purpose of this study was to confirm the factor structure of the McGill Quality of Life Questionnaire-Revised (MQOL-R) in the context of Korean culture and to verify its reliability and validity.
Methods
The participants comprised terminal cancer patients aged 25 or older, and data from 164 participants were analyzed. The study was conducted in the following order: translation, expert review, reverse translation, preliminary investigation and interviews, and completion of the final version. Confirmatory factor analysis was applied to evaluate the validity of the instrument, and the Beck Depression Inventory, Korean version (K-BDI) was applied to confirm the criterion validity of the MQOLR Korean version. The Cronbach’s alpha coefficient, representing internal consistency, was measured to evaluate reliability.
Results
Cronbach’s alpha for all 14 questions was 0.862. The model fit indices for confirmatory factor analysis were within the acceptance criteria. The factor loadings of all four factors were over 0.50, and convergent validity and discriminant validity were confirmed. Regarding criterion validity, a negative correlation was found between the four factors of MQOL-R Korean version and the K-BDI.
Conclusion
The MQOL-R Korean version, the reliability and validity of which were verified in this study, is a 15-item tool consisting of 14 items dealing with four physical, psychological, existential, and social factors and a single item evaluating the overall quality of life. The MQOL-R Korean version is an instrument that can more concisely and effectively measure the quality of life of patients with life-threatening diseases.
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