Diagnostic Utility and Psychometric Properties of the Beck Depression Inventory-II Among Korean Adults
- Authors
- Park, Kiho; Jaekal, Eunju; Yoon, Seowon; Lee, Seung-Hwan; Choi, Kee-Hong
- Issue Date
- 21-Jan-2020
- Publisher
- FRONTIERS MEDIA SA
- Keywords
- BDI-II; cutoff; validation; diagnostic utility; depressive disorders; screening tool
- Citation
- FRONTIERS IN PSYCHOLOGY, v.10
- Indexed
- SSCI
SCOPUS
- Journal Title
- FRONTIERS IN PSYCHOLOGY
- Volume
- 10
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/57965
- DOI
- 10.3389/fpsyg.2019.02934
- ISSN
- 1664-1078
- Abstract
- The Beck Depression Inventory-II (BDI-II) is one of the most widely used depression assessment tools in Korea. However, the psychometric properties and diagnostic cut-off point of the official Korean version of the BDI-II have not yet been reported. This study aims to clarify the psychometric properties and diagnostic utility of the Korean BDI-II. A total of 1,145 clinical and non-clinical Korean adults participated in this study. The BDI-II showed a high level of internal consistency and high correlations with other depression-related measures. Confirmatory factor analysis (CFA) was performed, and a 3-factor model showed the best model fit. To identify the diagnostic utility of the BDI-II, the Quality Assessment of Diagnostic Accuracy Studies 2nd Edition (QUADAS-2) methodology was applied in participant recruitment and research design. Results of ROC curve analysis suggested two optimal cut-off scores, 23 points for detecting major depressive disorder (MDD) (83.3% sensitivity, 86.8% specificity) and 17 points for depressive-related disorder (80.9% sensitivity, 76.4% specificity). To identify the usefulness of the BDI-II as a severity assessment tool or screening tool, a test information curve (TIC) was generated with an Item Response Theory (IRT) analysis. The TIC was flat and plateau-like, indicating its appropriateness as a severity rating tool. Research data supports the BDI-II as a reliable and valid screening tool as well as a severity rating tool in the Korean adult population.
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