Rasch Analysis of the Michigan Hand Questionnaire

Packham, Tara; MacDermid, Joy C.; Selles, Ruud W.; Slijper, Harm P.; Wouters, Robbert M.

doi:10.1016/j.jval.2021.09.015

Cited by 3 publications

(8 citation statements)

References 37 publications

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“…However, we were unable to find a satisfactory solution. Similar issues were identified in the Rasch analysis of the 37-item MHQ in a sample of patients with thumb OA, as 11 of the 37 items required rescoring but the 37-item MHQ still had misfit to the Rasch model [ 9 ].…”

Section: Discussionmentioning

confidence: 92%

“…The sample included 204 (22%) males and 719 (78%) females. Table 1 [ 9 ] includes a summary of the demographic data as well as the coding categories for each person variable in the Rasch analysis.…”

Section: Resultsmentioning

confidence: 99%

“…These three items present strong evidence of misfit as the significant fit residuals exceed ± 3 [ 28 ]. Similarly, in a Rasch analysis of the 37-item MHQ in patients with thumb OA, the aesthetics subscale and work performance subscale did not fit the Rasch model, as there were issues identified with the items in these subscales [ 9 ]. In this Rasch analysis of the brief MHQ, “Satisfaction of appearance”, “Interference of appearance” and “Slower work” were also assessed for DIF to determine if uniform DIF across person variables were the cause of the large residuals.…”

Section: Discussionmentioning

confidence: 99%

“…A more detailed explanation of the participant recruitment, and measurement and data collection procedures has been published elsewhere [ 11 ]. Demographic data has also been published elsewhere [ 9 ].…”

Section: Methodsmentioning

confidence: 99%

“…Furthermore, assumption testing is built into the methods of Rasch analysis [ 8 ], and the assumptions will ensure that the resulting analysis improves the measurement properties of the tool [ 7 ]. To date, Rasch methods have not been applied to the brief MHQ, although Rasch analyses have been performed in the 37-item MHQ [ 9 , 10 ]. Both studies identified that the MHQ had misfit to the Rasch model, identifying issues with the validity of the total MHQ score, but some subscale scores were found to have acceptable measurement properties [ 9 , 10 ], which supports the continued use of the MHQ in research and clinical settings.…”

Section: Introductionmentioning

confidence: 99%

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Rasch analysis of the brief Michigan Hand Questionnaire in patients with thumb osteoarthritis

Killip

MacDermid

Wouters

et al. 2022

BMC Musculoskelet Disord

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Background The brief Michigan Hand Questionnaire (brief MHQ) is a 12-item self-reported measure of hand function for patients with hand disorders which has been validated using Classical Test Theory. Rasch analysis can provide more detailed psychometric information. The purpose of this Rasch analysis is to assess the psychometric properties of the brief MHQ for patients with thumb osteoarthritis, and to make recommendations for improvements to the questionnaire if needed. Methods The Michigan Hand Questionnaire and demographic data were collected from 923 thumb osteoarthritis patients treated in specialized clinics for hand surgery and therapy in the Netherlands. Rasch analysis was performed on the 12 items of the brief MHQ using RUMM 2030 to assess the fit of the brief MHQ to the Rasch model. To determine fit, analysis of fit summary statistics, individual person fit and individual item fit were assessed. Threshold distributions were assessed to identify if any items required rescoring. The Person Separation Index was calculated to measure reliability of the questionnaire. Differential item functioning was assessed to identify item bias, and Principal Component Analysis was performed to identify unidimensionality and local dependence. Results The brief MHQ showed misfit (χ2 = 1312.5, p < 0.0001) with 6 items having disordered thresholds and 9 items requiring rescoring. After deleting 3 of the rescored items due to significant item fit residuals, the brief MHQ had an acceptable reliability (Cronbach’s alpha = 0.79). Misfit to the model (χ2 = 49.6, p = 0.0001), multidimensionality (10.2% of t-tests were significant), and item bias from non-uniform differential item functioning for 7 items across many person variables were still found. Conclusion Although no satisfactory solutions were found to correct the misfit to the Rasch model, it is recommended that the response options of the brief MHQ be rescored, and that items 6, 9 and 10 be removed. The lack of unidimensionality indicates that the items do not represent the singular construct of hand disability and that totalling the scores of the brief MHQ does not provide a valid measure of hand disability for people with thumb osteoarthritis. The 37-item Michigan Hand Questionnaire may provide a better assessment of hand disability for patients with thumb osteoarthritis.

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Section: Discussionmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%