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Assessment, Vol. 15, No. 2, 177-187 (2008) DOI: 10.1177/1073191107311261 The Factor Structure of the Beck Depression Inventory–IIAn EvaluationGhent University, Belgium, Stijn.Vanheule{at}Ugent.be
Ghent University, Belgium
Ghent University, Belgium
Ghent University, Belgium
Ghent University, Belgium The Beck Depression Inventory–II (BDI-II) is a frequently used scale for measuring depressive severity. BDI-II data (404 clinical; 695 nonclinical adults) were analyzed by means of confirmatory factor analysis to test whether the factor structure model with a somatic-affective and cognitive component of depression, formulated by Beck and colleagues, has a good fit. We also evaluated 10 alternative models. The fit of Beck's model was not good for all criteria. Three of the alternative models had a better fit in both samples, but none of these met all criteria for good fit. Of the alternatives with a better fit, we selected the only model with unidimensional subscales, which assesses a somatic, affective, and cognitive dimension. For this model, which we recommend, as well as for Beck' original model, a good fitting structure containing 15 and 16 items was developed with an item-deletion algorithm.
Key Words: Beck Depression Inventory–II depression psychometrics validity confirmatory factor analysis
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