Walid Al-Qerem, Dunia Basem, Sawsan Khdair, Anan Jarab, Judith Eberhardt
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引用次数: 0
Abstract
Background: Multiple sclerosis (MS) is a potentially disabling disease of the brain and spinal cord. This cross-sectional study aimed to validate the Arabic version of the Multiple Sclerosis Impact Scale-29 (MSIS-29) using Rasch analysis to assess quality of life in Jordanian MS patients.
Method: Rasch analysis was conducted to evaluate the suitability of the model for the present study. Model fit was assessed by computing item/person separation reliability, infit and outfit mean square (MSQ) values, Cronbach's alpha, and the Akaike Information Criterion.
Results: A total of 301 MS patients were enrolled in the study. Significant likelihood ratios for all three scales (MSIS-29-PHYSICAL, MSIS-29-PSYCHOLOGICAL, and MSIS-29-TOTAL) supported the use of a partial credit Rasch model. An issue with disordered thresholds was resolved by collapsing adjacent response categories. Item reliability scores for MSIS-29-PHYS and MSIS-29-PSYCH were 0.95 and 0.89, respectively, while person reliability scores were 0.92 and 0.84, respectively. Infit and outfit MSQ were within the acceptable range for all items on the MSIS-29-PSYCH scale. However, for the MSIS-29-PHYS scale, item MSIS-29_17 exceeded the acceptable range in both infit (1.93) and outfit (1.82) MSQs, and item MSIS-29_20 exceeded the acceptable range in infit (1.81). The Wright map also indicated that most items were considered relatively easy by the respondents, exhibiting various difficulty levels on the latent scale.
Conclusion: The Arabic version of the MSIS-29 is a valid and reliable tool for evaluating quality of life in Jordanian MS patients.
期刊介绍:
The journal publishes original contributions dealing with psychological aspects of the etiology, diagnosis, and treatment of disorders arising out of dysfunction of the central nervous system. Archives of Clinical Neuropsychology will also consider manuscripts involving the established principles of the profession of neuropsychology: (a) delivery and evaluation of services, (b) ethical and legal issues, and (c) approaches to education and training. Preference will be given to empirical reports and key reviews. Brief research reports, case studies, and commentaries on published articles (not exceeding two printed pages) will also be considered. At the discretion of the editor, rebuttals to commentaries may be invited. Occasional papers of a theoretical nature will be considered.