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Confirmatory factor analysis of the Korean version of the Beck Depression Inventory: Testing configural and metric invariance across undergraduate and clinical samples

Abstract

We conducted confirmatory factor analysis(CFA) to examine if the factor structure of a Korean version of the BDI(K-BDI) is invariant across undergraduate and clinical samples and if the factor loadings are equal across these two samples. In Study 1, six models about factor structure of the BDI reported in previous studies were evaluated with CFA on the data of 412 undergraduate samples. A hierarchical three-factor model was considered to be most appropriate as well as parsimonious in describing the data. Additionally, it was inappropriate to assume that there would be no correlation between the factors of the BDI. In Study 2, metric invariance across undergraduate students in Study 1 and clinical samples in our recent study was tested. Partial metric invariance across samples was confirmed after 5 first-order and one second-order estimates proving to be nonequivalent were not constrained. The results indicate that both factor structure and most factor loadings of the K-BDI are invariant across undergraduate and clinical samples.

keywords
한국판 BDI, 확인적 요인분석, 위계적인 3 요인모형, 구조동일성, 측정동일성, Korean version of BDI, confirmatory factor analysis, hierarchical three-factor model, configural invariance, metric invariance.

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