Journal of rehabilitation medicine : official journal of the UEMS European Board of Physical and Rehabilitation Medicine
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The Roland-Morris Disability Questionnaire (RDQ) is one of the most frequently used and recommended outcome measures for patients with low back pain. ⋯ In the absence of consistent findings across studies that have evaluated the RDQ by Rasch analysis, caution should be exercised in the development and application of alternative versions of the RDQ.