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Updated: Jul 24, 2025
Computerized Adaptive Testing System of Functional Assessment of Stroke
Published on: January 7, 2019
Test-Retest Reliability and Responsiveness of the Computerized Adaptive Testing System of the Functional Assessment
Po-Ting Chen1, Shih-Chie Lee2, Tzu-Yi Wu3
1Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan; School of Occupational Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan.
Objective:
To examine the test-retest reliability, responsiveness, and clinical utility of the Computerized Adaptive Testing System of the Functional Assessment of Stroke (CAT-FAS) in persons with stroke.
Design:
Repeated measurements design.
Setting:
A department of rehabilitation in a medical center.
Participants:
30 persons with chronic stroke (for test-retest reliability) and 65 persons with subacute stroke (for responsiveness) were recruited. To examine the test-retest reliability, the participants received measurements twice at 1-month intervals. To examine the responsiveness, the data were collected at admission and discharge from hospital.
Interventions:
Not applicable.
Main Outcome Measurement Tool:
CAT-FAS.
Results:
The intra-class correlation coefficients of the CAT-FAS were ≥0.82, indicating good to excellent test-retest reliability. The Kazis' effect size and standardized response mean of the CAT-FAS were ≥0.96, indicating good group-level responsiveness. For individual-level responsiveness, approximately two-thirds of the participants exceeded the conditional minimal detectable change. On average, the CAT-FAS was completed within 9 items and 3 minutes per administration.
Conclusions:
Our results suggest the CAT-FAS is an efficient measurement tool with good to excellent test-retest reliability and responsiveness. In addition, the CAT-FAS can be used routinely in clinical settings to monitor progress of the crucial 4 domains for persons with stroke.
