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- Persson, Carina Ulla, 1970, et al.
(författare)
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Measurement properties of the Swedish modified version of the Postural Assessment Scale for Stroke Patients (SwePASS) using Rasch analysis.
- 2017
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Ingår i: European journal of physical and rehabilitation medicine. - : Edizioni Minerva Medica S.p.A.. - 1973-9095 .- 1973-9087. ; 53:6, s. 848-55
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Tidskriftsartikel (refereegranskat)abstract
- A previous small-sample (n=150) Rasch analysis of the Swedish modified version of the Postural Assessment Scale for Stroke Patients (SwePASS) suggested problems regarding response categories and redundant items that need confirmation in larger samples with more severe strokes.To evaluate the measurement properties of the SwePASS in patients with acute stroke.A multicentre, cross-sectional study.Two stroke units in Western Sweden.The study cohort included 250 consecutive inpatients undergoing rehabilitation after acute stroke.The SwePASS assessments were performed once within the first four days after admission to the stroke units. The data were analysed according to the Rasch measurement model regarding targeting, model fit, reliability, response category function, local dependence and differential item functioning.Postural control of 250 patients (median age, 76.5 years) was assessed with the SwePASS within median of two days after admission to the stroke units. The SwePASS covered a continuum of different levels of postural control, but had suboptimal targeting with insufficient representation of lower and higher levels of postural control. The reliability was high, the item fit statistics were generally acceptable and there was no differential item functioning by sex, age and stroke localization. However, response categories did not function as expected for four of the 12 SwePASS items and five items exhibited local dependency.The SwePASS exhibited several promising measurement properties. To improve the scale, poor targeting, illogical response categories and local dependency should be addressed.The SwePASS provides valuable clinical information regarding postural control in the acute phase after stroke.
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| 2. |
- Piussi, Ramana, 1988, et al.
(författare)
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Measurement properties of the Swedish version of the anterior cruciate ligament return to sport after injury scale (ACL-RSI) : A Rasch analysis
- 2024
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Ingår i: Journal of Experimental Orthopaedics. - : Springer Berlin. - 2197-1153. ; 11:3
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Tidskriftsartikel (refereegranskat)abstract
- Purpose : This study aimed to investigate the measurement properties, according to the Rasch Measurement Theory, of the anterior cruciate ligament return to sport after injury scale (ACL-RSI) in patients treated with ACL reconstruction in Sweden. Methods : ACL-RSI responses from 1065 patients treated with ACL reconstruction were extracted from a rehabilitation-specific registry. Rasch analyses were performed on ACL-RSI item response data using the RUMM2030plus software. The analyses focused on targeting (person-item threshold distribution), item hierarchy, response category thresholds, overall and individual item and person fit, differential item functioning (DIF), unidimensionality and reliability. Results : The ACL-RSI had compromised fit to the Rasch model, including DIF and malfunctioning response categories. Several items correlate with each other and the presumptions to aggregate item responses into one single score were not met. When accounting for local dependency, the measurement properties of the ACL-RSI improved in terms of model fit and DIF and unidimensionality were supported. Conclusion : The ACL-RSI was found to have signs of multidimensionality and local dependency, that is, the answers to one item are influenced by the answers to other items. As such, researchers should be careful when using the ACL-RSI as one single score to evaluate patients treated with ACL reconstruction, unless local dependency is accounted for in the scoring process. Level of Evidence: Level III.
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