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University of the West Indies, West Indian Medical Journal, 5(61)

DOI: 10.7727/wimj.2010.145

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A Comparison of the Psychometric Strengths of the Public-domain Zung Self-rating Depression Scale with the Proprietary Beck Depression Inventory-II in Barbados

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Preprint: policy unknown
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Postprint: policy unknown
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Published version: policy unknown
Data provided by SHERPA/RoMEO

Abstract

Objective: To compare the psychometric strengths of two venerable measures of depression, the Zung Self-rating Depression Scale (Zung SDS) and the Beck Depression Inventory-II (BDI-II) in a Caribbean university student population and to provide researchers and clinicians interested in measures of depression with psychometric evidence that differentiates the two instruments for a Caribbean sample. Methods: Undergraduate student volunteers (n = 415; 75% females, 25% males; mean age = 25.2 years) completed the instruments as part of a larger study. Correlational analyses evaluated internal con-sistency reliabilities. Missing value analyses and corrected item-total correlations are also reported for each scale. Results: The BDI-II demonstrated marginally superior internal consistency reliability (α = 0.88) than the Zung SDS (α = 0.85). Correlation between the Zung SDS and the BDI-II was strong (r = 0.67, p