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Rasch analysis of the upper-limb subscale of the stroke rehabilitation assessment of movement (STREAM) tool in an acute stroke cohort Rasch analysis of the upper-limb subscale of the STREAM tool in an acute stroke population.
- Source :
- Topics in Stroke Rehabilitation; Jan2019, Vol. 26 Issue 1, p24-31, 8p
- Publication Year :
- 2019
-
Abstract
- Background: Stroke is a leading cause of disability worldwide. The most common impairment resulting from stroke is upper-limb weakness. Objectives: To determine the usefulness and psychometric validity of the upper-limb subscale of the STREAM in an acute stroke population. Methods: Rasch Analysis, including unidimensionality assumption testing, determining model fit, and analysis of: reliability, residual correlations, and differential item functioning. Results: 125 individuals were assessed using the upper-limb subscale of the Stroke Rehabilitation Assessment of Movement (STREAM) tool. Rasch analysis suggests the STREAM is a unidimensional measure. However, when scored using the originally proposed method (0-2), or using the response pattern (0-5) neither variant fit the Rasch model (p < 0.05). Although, the reliability was good (Person-Separation Index - 0.847 and 0.903, respectively). Correcting for the disordered thresholds, and thereby producing the new scoring pattern, led to substantial improvement in the overall fit (chi-square probability of fit - 22%), however, the reliability was slightly reduced (PSI - 0.806). Conclusions: The study proposes a new scoring method for the upper-limb subscale of the STREAM outcome measure in the acute stroke population. [ABSTRACT FROM AUTHOR]
- Subjects :
- ANALYSIS of variance
ARM
CHI-squared test
CONFIDENCE intervals
STATISTICAL correlation
DISCRIMINANT analysis
LONGITUDINAL method
RESEARCH methodology
SCIENTIFIC observation
PROBABILITY theory
PSYCHOMETRICS
RELIABILITY (Personality trait)
RESEARCH funding
STATISTICS
DATA analysis
RESEARCH methodology evaluation
DATA analysis software
STROKE rehabilitation
DESCRIPTIVE statistics
PHYSICAL therapy assessment
DIFFERENTIAL item functioning (Research bias)
Subjects
Details
- Language :
- English
- ISSN :
- 10749357
- Volume :
- 26
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Topics in Stroke Rehabilitation
- Publication Type :
- Academic Journal
- Accession number :
- 135115507
- Full Text :
- https://doi.org/10.1080/10749357.2018.1517510