could affect their clinical decisions, and that learning more about these biases could improve their care of patients. After completing the IATs, residents acknowledged greater vulnerability to unconscious bias than they did at the start, suggesting that the experience heightened their awareness. Also, those physicians who were aware that the study had to do with racial bias, and who had higher levels of implicit prowhite bias, were more likely to recommend thrombolysis to black patients than physicians with low bias—the opposite of the study’s main effect. This suggests that implicit bias can be recognized and modulated to counteract its effect on treatment decisions. These finding support the IAT’s value as an educational tool.