Measurement of Success (IMAGE) Brown University Caption Researchers have devised standardized methods and criteria for clinicians to grade patients' performance, speed, and skill using any kind of prosthetic arm to do 18 everyday tasks. Credit Courtesy of Linda Resnik, PVAMC/Brown Usage Restrictions With credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.