Development of a Computerized Adaptive Testing System of the Fugl-Meyer Motor Scale in Stroke Patients

Abstract Hou W-H, Shih C-L, Chou Y-T, Sheu C-F, Lin J-H, Wu H-C, Hsueh I-P, Hsieh C-L. Development of a computerized adaptive testing system of the Fugl-Meyer motor scale in stroke patients. Objective To develop a computerized adaptive testing system of the Fugl-Meyer motor scale (CAT-FM) to efficiently and reliably assess motor function in patients with stroke. Design First, a simulation study was used to develop and examine the psychometric properties of the CAT-FM. Second, a field study was employed to determine the administration efficiency of the CAT-FM. Setting One medical center and 1 teaching hospital. Participants Patients' responses (n=301) were used for the simulation study; 49 patients participated in the field study. Interventions Not applicable. Main Outcome Measures The 2 CAT-FM item banks (upper extremity and lower extremity) include 37 items from the original Fugl-Meyer scale. The reliability, validity, and responsiveness of the CAT-FM were determined by the simulation study. Results Two stopping rules (reliability ≥0.9 or an increase of reliability