Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-3918
Title: Psychometric limitations of the center for epidemiologic studies-depression scale for assessing depressive symptoms among adults with HIV/AIDS : a Rasch analysis
Authors : Gay, Caryl L.
Kottorp, Anders Börje Mauritz
Lerdal, Anners
Lee, Kathryn A.
Published in : Depression Research and Treatment
Volume(Issue) : 2016
Issue : 2824595
Publisher / Ed. Institution : Hindawi
Issue Date: 2016
License (according to publishing contract) : CC BY 4.0: Namensnennung 4.0 International
Type of review: Not specified
Language : English
Subject (DDC) : 616.8: Neurology, diseases of nervous system
Abstract: The Center for Epidemiological Studies-Depression (CES-D) scale is a widely used measure of depressive symptoms, but its psychometric properties have not been adequately evaluated among adults with HIV/AIDS. This study used an item response theory approach (Rasch analysis) to evaluate the CES-D's validity and reliability in relation to key demographic and clinical variables in adults with HIV/AIDS. A convenience sample of 347 adults with HIV/AIDS (231 males, 93 females, and 23 transgenders; age range 22-77 years) completed the CES-D. A Rasch model application was used to analyze the CES-D's rating scale functioning, internal scale validity, person-response validity, person-separation validity, internal consistency, differential item functioning (DIF), and differential test functioning. CES-D scores were generally high and associated with several demographic and clinical variables. The CES-D distinguished 3 distinct levels of depression and had acceptable internal consistency but lacked unidimensionality, five items demonstrated poor fit to the model, 15% of the respondents demonstrated poor fit, and eight items demonstrated DIF related to gender, race, or AIDS diagnosis. Removal of misfitting items resulted in minimal improvement in the CES-D's substantive and structural validity. CES-D scores should be interpreted with caution in adults with HIV/AIDS, particularly when comparing scores across gender and racial groups.
Departement: Gesundheit
Publication type: Article in scientific Journal
DOI : 10.1155/2016/2824595
10.21256/zhaw-3918
ISSN: 2090-1321
2090-133X
URI: https://digitalcollection.zhaw.ch/handle/11475/8776
Appears in Collections:Publikationen Gesundheit

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