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[Diagnostic Performance and Validity of the German Version of the BDI-II - A Secondary Analysis with Data from
Christine Kuehner1, Ferdinand Keller2, Isabelle F Schricker1
1Zentralinstitut für Seelische Gesundheit, Arbeitsgruppe Verlaufs- und Interventionsforschung, Abteilung Psychiatrie und Psychotherapie, Medizinische Fakultät Mannheim.
Objectives:
Study of the diagnostic performance and validity of the German Beck Depression Inventory (BDI-II) in a large data set from multiple adult samples.
Methods:
The BDI-II was assessed together with the SCID-I as external criterion in 638 individuals (385 currently or remitted depressed individuals, 253 controls). The screening performance of the BDI-II was calculated for suggested cut-offs from the BDI-II manual and for optimal cut-offs derived from ROC-analyses.
Results:
The internal consistency of the BDI-II was high (> 0,90) and it showed plausible associations with construct-related scales. Optimal cut-off scores of 16+ resulted for MDE (Youden's J = 0.838) and of 14+ for DD (J = 0.814).
Conclusions:
The German BDI-II is a reliable und valid screening tool for detecting depressive episodes and depressive disorders in the adult population. Depending on prioritized goals different cut-off-values can be used.
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