Rasch analysis of the 23-item version of the Roland Morris Disability Questionnaire

Objective: To determine the psychometric properties of the 23-item version of the Roland Morris Disability Questionnaire (RMDQ-23) and to quantify their stability across 2 cultures/languages and 2 types of care-settings. Methods: Rasch analysis of data from 1,000 patients with low back pain from pri...

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Main Authors: Kent, Peter, Grotle, M., Dunn, K., Albert, H., Lauridsen, H.
Format: Journal Article
Published: Stiftelsen Rehabiliteringsinformation 2015
Online Access:http://hdl.handle.net/20.500.11937/54908
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author Kent, Peter
Grotle, M.
Dunn, K.
Albert, H.
Lauridsen, H.
author_facet Kent, Peter
Grotle, M.
Dunn, K.
Albert, H.
Lauridsen, H.
author_sort Kent, Peter
building Curtin Institutional Repository
collection Online Access
description Objective: To determine the psychometric properties of the 23-item version of the Roland Morris Disability Questionnaire (RMDQ-23) and to quantify their stability across 2 cultures/languages and 2 types of care-settings. Methods: Rasch analysis of data from 1,000 patients with low back pain from primary care (UK and Denmark) and secondary care (Denmark). Results: The RMDQ-23 is unidimensional if local item dependency issues are accommodated, but contains several misfitting or overdiscriminating items, some poor targeting of items, and the scoring of 4-5 items is differentially affected by common clinical characteristics (such as age, gender, pain intensity, pain duration and care setting), depending on the country. Conclusion: As similar results have been found for the RMDQ-24, we believe it is timely to reconsider whether: (i) the RMDQ should be reconstructed using an item-response theory-based approach that includes consideration of new items and response options; or (ii) the use of alternative questionnaires should be recommended, such as the Oswestry Disability Index, that have shown evidence of fitting the Rasch model; or (iii) a completely new condition-specific questionnaire should be developed, perhaps utilizing a computerized adaptive testing platform.
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spelling curtin-20.500.11937-549082017-09-13T16:11:34Z Rasch analysis of the 23-item version of the Roland Morris Disability Questionnaire Kent, Peter Grotle, M. Dunn, K. Albert, H. Lauridsen, H. Objective: To determine the psychometric properties of the 23-item version of the Roland Morris Disability Questionnaire (RMDQ-23) and to quantify their stability across 2 cultures/languages and 2 types of care-settings. Methods: Rasch analysis of data from 1,000 patients with low back pain from primary care (UK and Denmark) and secondary care (Denmark). Results: The RMDQ-23 is unidimensional if local item dependency issues are accommodated, but contains several misfitting or overdiscriminating items, some poor targeting of items, and the scoring of 4-5 items is differentially affected by common clinical characteristics (such as age, gender, pain intensity, pain duration and care setting), depending on the country. Conclusion: As similar results have been found for the RMDQ-24, we believe it is timely to reconsider whether: (i) the RMDQ should be reconstructed using an item-response theory-based approach that includes consideration of new items and response options; or (ii) the use of alternative questionnaires should be recommended, such as the Oswestry Disability Index, that have shown evidence of fitting the Rasch model; or (iii) a completely new condition-specific questionnaire should be developed, perhaps utilizing a computerized adaptive testing platform. 2015 Journal Article http://hdl.handle.net/20.500.11937/54908 10.2340/16501977-1935 http://creativecommons.org/licenses/by/4.0/ Stiftelsen Rehabiliteringsinformation fulltext
spellingShingle Kent, Peter
Grotle, M.
Dunn, K.
Albert, H.
Lauridsen, H.
Rasch analysis of the 23-item version of the Roland Morris Disability Questionnaire
title Rasch analysis of the 23-item version of the Roland Morris Disability Questionnaire
title_full Rasch analysis of the 23-item version of the Roland Morris Disability Questionnaire
title_fullStr Rasch analysis of the 23-item version of the Roland Morris Disability Questionnaire
title_full_unstemmed Rasch analysis of the 23-item version of the Roland Morris Disability Questionnaire
title_short Rasch analysis of the 23-item version of the Roland Morris Disability Questionnaire
title_sort rasch analysis of the 23-item version of the roland morris disability questionnaire
url http://hdl.handle.net/20.500.11937/54908