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Rasch analysis of the hospital anxiety and depression scale in spinal cord injury

Rasch analysis of the hospital anxiety and depression scale in spinal cord injury
Rasch analysis of the hospital anxiety and depression scale in spinal cord injury
Purpose: The purpose of this study was to evaluate the psychometric properties of the Hospital Anxiety and Depression Scale (HADS), applied among persons with spinal cord injury (SCI), using Rasch analysis. Methods: A cross-sectional multicenter study was conducted and the data of 102 people with SCI were analyzed. Rasch analyses were performed to assess dimensionality, overall and individual item fit, response scale structure, targeting, and differential item functioning. Results: The anxiety and depression subscales showed unidimensionality, that is, model and item fit. The two subscales are reliable (r = 0.72, 0.82) in SCI. No disordered structure of the response scales or differential item functioning in age, gender, education, relationship status, level of spinal lesion were found. Stepwise deletion of the misfitting items did not produce a total score that fulfilled the statistical criteria for unidimensionality. Conclusions: The results of the Rasch analyses support the use of the anxiety and depression subscales among people with SCI. However, further research is needed to confirm these findings and examine sensitivity to change of the HADS in SCI, which would support its use in longitudinal observational and intervention studies.
0090-5550
214-223
Müller, Rachel
739ad60a-ce95-408b-903d-5850deca2111
Cieza, Alarcos
a0df25c5-ee2c-4580-82b3-d0a75591580e
Geyh, Szilvia
277a9f7e-1e41-48ef-ad1a-cb91f559f215
Müller, Rachel
739ad60a-ce95-408b-903d-5850deca2111
Cieza, Alarcos
a0df25c5-ee2c-4580-82b3-d0a75591580e
Geyh, Szilvia
277a9f7e-1e41-48ef-ad1a-cb91f559f215

Müller, Rachel, Cieza, Alarcos and Geyh, Szilvia (2012) Rasch analysis of the hospital anxiety and depression scale in spinal cord injury. Rehabilitation Psychology, 57 (3), 214-223. (doi:10.1037/a0029287).

Record type: Article

Abstract

Purpose: The purpose of this study was to evaluate the psychometric properties of the Hospital Anxiety and Depression Scale (HADS), applied among persons with spinal cord injury (SCI), using Rasch analysis. Methods: A cross-sectional multicenter study was conducted and the data of 102 people with SCI were analyzed. Rasch analyses were performed to assess dimensionality, overall and individual item fit, response scale structure, targeting, and differential item functioning. Results: The anxiety and depression subscales showed unidimensionality, that is, model and item fit. The two subscales are reliable (r = 0.72, 0.82) in SCI. No disordered structure of the response scales or differential item functioning in age, gender, education, relationship status, level of spinal lesion were found. Stepwise deletion of the misfitting items did not produce a total score that fulfilled the statistical criteria for unidimensionality. Conclusions: The results of the Rasch analyses support the use of the anxiety and depression subscales among people with SCI. However, further research is needed to confirm these findings and examine sensitivity to change of the HADS in SCI, which would support its use in longitudinal observational and intervention studies.

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More information

Published date: 2012
Organisations: Faculty of Social, Human and Mathematical Sciences

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Local EPrints ID: 342669
URI: http://eprints.soton.ac.uk/id/eprint/342669
ISSN: 0090-5550
PURE UUID: 8140095f-2d0c-4fa3-af34-58be40b79a09

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Date deposited: 12 Sep 2012 10:59
Last modified: 14 Mar 2024 11:54

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Contributors

Author: Rachel Müller
Author: Alarcos Cieza
Author: Szilvia Geyh

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