Research Article  |   May 2018
Ohio Modified Arm–Motor Ability Test (OMAAT): An Optimized Measure of Upper Extremity Functional Limitation in Hemiparetic Stroke
Author Affiliations
  • Andrew C. Persch, PhD, OTR/L, BCP, is Assistant Professor, Division of Occupational Therapy, The Ohio State University, Columbus; andrew.persch@osumc.edu
  • Alexis Wagner, MOT, OTR/L, is Student Research Assistant, Division of Occupational Therapy, The Ohio State University, Columbus
  • Mallory Fleming, MOT, OTR/L, is Occupational Therapist, The Ohio State University Medical Center, Columbus
  • P. Cristian Gugiu, PhD, is Assistant Professor, Quantitative Research, Evaluation, and Measurement, The Ohio State University, Columbus
  • Stephen J. Page, PhD, MS, MOT, OTR/L, FAHA, FACRM, FAOTA, is Associate Professor, Division of Occupational Therapy, and Director, Better Rehabilitation and Assessment for Improved Neuro-Recovery Lab, The Ohio State University, Columbus
Article Information
Assessment Development and Testing / Hand and Upper Extremity / Neurologic Conditions / Stroke / Research Articles
Research Article   |   May 2018
Ohio Modified Arm–Motor Ability Test (OMAAT): An Optimized Measure of Upper Extremity Functional Limitation in Hemiparetic Stroke
American Journal of Occupational Therapy, May 2018, Vol. 72, 7204205030p1-7204205030p6. doi:10.5014/ajot.2018.025445
American Journal of Occupational Therapy, May 2018, Vol. 72, 7204205030p1-7204205030p6. doi:10.5014/ajot.2018.025445
Abstract

This secondary analysis quantified the psychometric properties of the Ohio Modified Arm–Motor Ability Test (OMAAT) in a sample of neurologically stable chronic stroke survivors (n = 67, 40 men; mean age 59.8 yr, standard deviation = 12.8; 42 White, 23 Black, 2 other; 92.5% right-sided lesion; 44 ischemic stroke). Findings indicate high OMAAT internal consistency (Cronbach’s α = .97, ordinal α = .98, Gugiu’s bootstrap reliability = .97), unidimensionality, and strong positive factor loadings for all 20 OMAAT items. Convergent validity between OMAAT and Action Research Arm Test total scores was strong (r = .90, p < .0001). The OMAAT is the first short measure of upper extremity functional limitation available to clinicians and researchers that includes an administration manual and that has been examined using nonparametric psychometrics. A detailed administration manual is provided as a supplement to this article.