Rasch analysis of the activities-specific balance confidence scale in individuals poststroke.

Nothing on how to ensure balance in stroke survivors, so USELESS.

 Rasch analysis of the activities-specific balance confidence scale in individuals poststroke.

Archives of Rehabilitation Research and Clinical Translation , Volume 1(3-4) , Pgs. 100028.

NARIC Accession Number: J84898.  What's this?
ISSN: 2590-1095.
Author(s): Seamon, Bryant A. ; Kautz, Steven A. ; Velozo, Craig A..
Publication Year: 2019.
Number of Pages: 9.

Abstract: 

Study examined the psychometric properties of the Activities-specific Balance Confidence (ABC) scale using Rasch analysis for stroke survivors. Data was extracted from the Locomotor Experience Applied Post-Stroke phase-3, multisite, randomized controlled clinical trial for 406 community-dwelling, ambulatory, older adults who were approximately 2 months post stroke. Outcome measures examined unidimensionality, local dependence, rating-scale structure, item and person fit, person-item match, and separation index of the ABC scale. Confirmatory and exploratory factor analysis showed the ABC scale was adequately unidimensional and 3-item pairs had local dependence. A collapsed 5-category rating scale was superior to the 101-category scale. The hardest item was “walking outside on an icy sidewalk,” the easiest item was “getting into or out of a car,” and no items misfit. The ABC scale had high person reliability (0.93), despite 10.5 percent of individuals misfitting the expected response pattern. Mean ability level of the sample was slightly lower (−0.56 logits) than the mean item difficulty indicating that the ABC scale adequately matched our sample’s balance confidence. The ABC scale did not have a floor or ceiling effect and separated individuals into 5 statistically distinct strata (separation index = 3.71). The Rasch model supports the use of the ABC scale to measure balance confidence in individuals poststroke. Recommendations include collapsing the rating scale and developing a computerized-adaptive test version of the scale to enhance clinical utility.
Descriptor Terms: EQUILIBRIUM, MEASUREMENTS, OUTCOMES, PERFORMANCE STANDARDS, POSTURE.


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Citation: Seamon, Bryant A. , Kautz, Steven A. , Velozo, Craig A.. (2019). Rasch analysis of the activities-specific balance confidence scale in individuals poststroke.  Archives of Rehabilitation Research and Clinical Translation , 1(3-4), Pgs. 100028. Retrieved 12/27/2020, from REHABDATA database.