KLINIK PSIKOFARMAKOLOJI BULTENI-BULLETIN OF CLINICAL PSYCHOPHARMACOLOGY, sa.3, ss.213-227, 2010 (SCI-Expanded, TRDizin)
Objective: The purpose of this study was to adapt the CES-Depression scale into Turkish and to investigate the psychometric characteristics of the scale. Method:The data were collected from 1143 subjects for the validity and reliability analyses through different procedures. Results: The reliability and validity results of the scale found in this study were quite similar to the results in the literature. The internal consistency coefficient was between 0.75 and 0.90. The Guttman split-half coefficient was 0.89. The test-retest reliability by two weeks was 0.69. The analysis of items by item response theory showed item 7 to be the least discriminant item, and consecutively item 11, 15, and 13 followed. The most discriminant items happened to be 6, 3, and 8. The factor loadings of the items of the scale, both by the explanatory and confirmatory factor analyses, led to similar results found in other studies. The four factor structure of the scale was tested and the GFI was 0.84 through confirmatory factor analysis. The correlation coefficient between the CES-D and Back Depression Inventory was 0.77. We observed that the scale discriminated between patient and non-patient groups effectively at 81.7%. Conclusion: The Turkish version of the CES-D scale can be used for the screening purposes during the assessment process of groups.