Evaluating hierarchical items of the geriatric depression scale through factor analysis and item response theory
Background: Geriatric depression scale (GDS) is a common screening tool for measuring depression among older adults. It employs a multi-factor structure and some differential item functioning (DIF) allowing different versions of GDS across cultures. The present study aimed to identify the short vers...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
Elsevier
2019-08-01
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Series: | Heliyon |
Subjects: | |
Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844019359602 |