Publication

On the Factor Structure of the Beck Depression Inventory-II: G Is the Key

Brouwer, D., Meijer, R. R. & Zevalkink, J., Mar-2013, In : Psychological Assessment. 25, 1, p. 136-145 10 p.

Research output: Contribution to journalArticleAcademicpeer-review

The Beck Depression Inventory II (BDI-II; Beck, Steer, & Brown, 1996) is intended to measure severity of depression, and because items represent a broad range of depressive symptoms, some multidimensionality exists. In recent factor-analytic studies, there has been a debate about whether the BDI-II can be considered as one scale or whether subscales should be distinguished. In the present study, we applied a bifactor model to evaluate the extent to which scores reflect a single variable in a large sample of 1,530 clinical outpatients. We found that total scale score variation reflected some multidimensionality, but not enough to justify the scoring of subscales. We conclude that the BDI-II total scale score reflects a single construct and that reporting and interpreting subscale scores may result in misleading conclusions.

Original languageEnglish
Pages (from-to)136-145
Number of pages10
JournalPsychological Assessment
Volume25
Issue number1
Publication statusPublished - Mar-2013

    Keywords

  • BDI-II, dimensionality, factor structure, bifactor model, ITEM BIFACTOR ANALYSIS, PSYCHOMETRIC EVALUATION, MODEL, RELIABILITY, OUTPATIENTS, SCALE, UNIDIMENSIONALITY, DIMENSIONALITY, VALIDITY, DOMAINS

View graph of relations

ID: 5812641