The Beck Depression Inventory, Second Edition (BDI-II)

What is it about?

In this study, we do two things: 1) We describe and test a new method for population-level structural analysis; 2) We apply that method to the BDI-II to determine if any of the proposed test structures work better. We find that: 1) The new method for cross-sample structural analysis appears sound; 2) There are multiple structures for the BDI-II that fit equally well, so it is likely that choice of model should be based on the clinical usefulness of that model.

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Why is it important?

The new method for cross-sample structural analysis is much simpler than previously proposed methods, and can even be accomplished in Excel. Also, the fact that multiple models seem to fit BDI-II equally well suggests that decisions about using this depression scale should be based on more practical factors.