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Mokken scaling analysis of the Hospital Anxiety and Depression Scale in individuals with cardiovascular disease

Cosco, Theodore D.; Doyle, Frank; Watson, Roger; Ward, Mark; McGee, Hannah

Authors

Theodore D. Cosco

Frank Doyle

Mark Ward

Hannah McGee



Abstract

Objective: The Hospital Anxiety and Depression Scale (HADS) is a prolifically used scale of anxiety and depression. The original bidimensional anxiety-depression latent structure of the HADS has come under significant scrutiny, with previous studies revealing one-, two-, three- and four-dimensional structures. The current study examines the latent structure of the HADS using a non-parametric item response theory method. Method: Using data conglomerated from four independent studies of cardiovascular disease employing the HADS (n=893), Mokken scaling procedure was conducted to assess the latent structure of the HADS. Results: A single scale consisting of 12 of 14 HADS items was revealed, indicating a unidimensional latent HADS structure. Discussion: The HADS was initially intended to measure mutually exclusive levels of anxiety and depression; however, the current study indicates that a single dimension of general psychological distress is captured. © 2012 Elsevier Inc..

Journal Article Type Article
Publication Date 2012-03
Journal General hospital psychiatry
Print ISSN 0163-8343
Electronic ISSN 1873-7714
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 34
Issue 2
Pages 167-172
APA6 Citation Cosco, T. D., Doyle, F., Watson, R., Ward, M., & McGee, H. (2012). Mokken scaling analysis of the Hospital Anxiety and Depression Scale in individuals with cardiovascular disease. General hospital psychiatry, 34(2), 167-172. https://doi.org/10.1016/j.genhosppsych.2011.11.005
DOI https://doi.org/10.1016/j.genhosppsych.2011.11.005
Keywords Latent structure; Mokken scaling; Item response theory; Psychometric validation; Depression; Anxiety; Cardiovascular disease
Publisher URL https://www.sciencedirect.com/science/article/pii/S016383431100363X?via%3Dihub
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