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Validation of Yonsei-Bilateral Activity Test (Y-BAT)-Bilateral Upper Extremity Inventory Using Rasch Analysis
Joo-Hyun Lee1, Ickpyo Hong2, Ji-Hyuk Park3
1Chosun University, Gwangju, Republic of Korea.
OTJR : Occupation, Participation and Health
|May 28, 2020
Summary
The Yonsei-Bilateral Activity Test (Y-BAT) shows promise for assessing upper extremity function in stroke survivors. A revised 19-item version demonstrates good precision and internal validity for clinical use.
Area of Science:
- Rehabilitation Medicine
- Neuroscience
- Biomedical Engineering
Background:
- Assessing bilateral upper extremity movement quality post-stroke is challenging.
- Existing tools may lack specificity for detailed functional evaluation.
- The Yonsei-Bilateral Activity Test (Y-BAT) was developed to address this gap.
Purpose of the Study:
- To evaluate the psychometric properties of the Yonsei-Bilateral Activity Test (Y-BAT).
- To determine the reliability and validity of the Y-BAT for measuring upper extremity function.
- To refine the Y-BAT for clinical application in stroke rehabilitation.
Main Methods:
- Observational cross-sectional study with 100 stroke survivors.
- Factor analyses were used to examine unidimensionality.
- Rasch analysis assessed rating scale structure, fit statistics, and measurement precision.
Main Results:
- The Y-BAT exhibited a unidimensional measurement construct.
- 19 out of 27 items demonstrated good fit within the Rasch model.
- The revised 19-item Y-BAT showed high precision and reliability (0.9).
Conclusions:
- A revised 19-item Y-BAT possesses sound internal validity.
- The Y-BAT is a precise and potentially valuable tool for clinicians.
- It aids in measuring upper extremity function in stroke survivors.
