ArticleSage open aging
Validity and Reliability of the Five-Item Version of the Geriatric Depression Scale (GDS-5) Among Iranian Older Adults.
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Abstract
Background: The Geriatric Depression Scale (GDS) is widely used to screen depression in older adults, yet culturally adapted brief forms require validation. Objective: This study aimed to evaluate the validity and reliability of the Persian Five-Item Geriatric Depression Scale (GDS-5) to ensure its suitability for accurate and efficient depression screening among Iranian older adults. Methods: This cross-sectional study evaluated the psychometric properties of the Persian Five-Item GDS (GDS-5) in 200 Iranian older adults. Structural validity was examined using Exploratory Factor Analysis (EFA). Concurrent validity, test-retest reliability, and diagnostic accuracy were assessed using standard correlation and ROC analyses. Results: EFA supported a coherent one-factor structure. The GDS-5 showed strong concurrent validity with the CES-D ( Conclusion: Overall, the present study demonstrates that the Persian version of the GDS-5 is a valid, reliable, and diagnostically accurate screening instrument for depressive symptoms among Iranian older adults. Future research should focus on validating the instrument in diverse settings (e.g., primary care clinics, long-term care facilities) and utilizing a wider sample with diverse sociodemographic characteristics to improve generalizability.
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