Examining item bias in the anxiety subsc
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Wai-Kwong Tang; Eric Wong; Helen F. K. Chiu; C. M. Lum; Gabor S. Ungvari
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Article
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2008
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John Wiley and Sons
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English
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## Abstract The Hospital Anxiety and Depression Scale (HADS) is a widely used screening instrument for depression and anxiety in medically compromised patients. The purpose of this study was to examine the differential item functioning (DIF) of the anxiety subscale of the HADA (HADSโA). A research