Key Takeaways We ran a large U.S. study to understand how people make moral judgments. Our goal was to see which moral principles best explain why different people view moral situations as right or wrong. We discovered 15 core moral dimensions that strongly predict people's judgments. Together, these 15 factors do a good job of explaining how most U.S. Americans respond to moral scenarios. We developed a new way to measure and predict moral intuitions using personalized models. ...