01553nas a2200169   4500000000100000008004100001653002400042653001200066100001700078700002100095700001300116245007300129300002800202490000700230050000600237520114000243       2004                            d10aPeer Reviewed Paper10aChecked1 aLatimer Jane1 aChansirinukor W.1 aMaher C.00aEvaluation of the multi-level Roland-Morris disability questionnaire  a1-15. [Impact Factor 0]0 v20  aN3 a<p>
The Roland-Morris Disability Questionnaire (RM24) contains 24 items, patients completing the questionnaire by ticking the items that apply to them. It is likely that requiring a patient to respond in this manner may lose information about the patient's disability. Developing a similar questionnaire with a multi-level response option would address this. Therefore, the aims of this study were to develop a modified version of the RM24 (multi-level RM24) and to evaluate its measurement properties. In a series of three studies involving 667 patients with low back pain the descriptive statistical properties of the multi-level RM24 and the psychometric properties of the original and multi-level RM24 were evaluated. The multi-level RM24 was shown to have good internal consistency, reliability and cross-sectional construct validity, and to minimize the ceiling effect found in the RM24. The longitudinal construct validity for the multi-level RM24 was also greater than for the RM24. In conclusion, replacing the yes/no response option with a multi-level response option improves the measurement properties of the RM24.
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