title: A comparison of responsiveness and predictive validity of two balance measures in patients with stroke.
abstract: OBJECTIVE
  To compare the responsiveness and predictive validity of the Balance Computerized Adaptive Test (Balance CAT) and the Postural Assessment Scale for Stroke patients (PASS) in inpatients with stroke receiving rehabilitation.
  
  
  METHODS
  A pre-post test design.
  
  
  METHODS
  Eighty-five inpatients after stroke.
  
  
  METHODS
  Effect size d and Wilcoxon signed-rank test were used to assess the internal responsiveness of the Balance CAT and PASS. The changes in the Barthel Index (BI) and the mobility subscale of the Stroke Rehabilitation Assessment of Movement (MO-STREAM) scores were both chosen as the external criteria for examining external responsiveness. Moreover, to investigate the predictive validity, the admission scores of the two balance measures, and the discharge score of the BI/MO-STREAM, were examined by simple linear regression analysis.
  
  
  RESULTS
  Both the Balance CAT and PASS had high internal responsiveness (effect size d ≥ 0.87) and fair external responsiveness (r(2) ≥ 0.20). The predictive validities of both measures were sufficient (r(2) ≥ 0.33). The Balance CAT took approximately 3 items (min-max = 2-4) to complete.
  
  
  CONCLUSIONS
  The Balance CAT and PASS have sufficient responsiveness and predictive validity in inpatients with stroke receiving rehabilitation. The Balance CAT is more efficient to administer and is thus recommended over the PASS.
authors: School of Occupational Therapy, College of Medicine and Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Taipei, Taiwan.
authors: Wan-Hui
authors: WH
authors: Yu
authors: I-Ping
authors: IP
authors: Hsueh
authors: Wen-Hsuan
authors: WH
authors: Hou
authors: Yen-Ho
authors: YH
authors: Wang
authors: Ching-Lin
authors: CL
authors: Hsieh
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D009068:Movement; D004856:Postural Balance; D011594:Psychometrics; D011597:Psychomotor Performance; D015203:Reproducibility of Results; D018709:Statistics, Nonparametric; D020521:Stroke / Q000503:physiopathology; D000071939:Stroke Rehabilitation