Coin Toss (IMAGE) Michigan Medicine - University of Michigan Caption Rather than the 50/50 odds from a coin toss, the odds that a patient will get the more effective treatment in a clinical trial increase over time in studies that use the Response-Adaptive Randomization approach. Credit Courtesy University of Michigan Usage Restrictions None 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.