Bad behavior is usually more visible than good. It’s what people talk about, it’s what the news media report on, it’s what experts focus on. Experts are always trying to change bad behavior by warning of how widespread it is, and they take any opportunity to label it a crisis. “The field loves talking about the problems because it generates political and economic support,” says Wes Perkins, a professor of sociology at Hobart and William Smith Colleges. This strategy might feel effective, but it’s not — it simply communicates that bad behavior is the social norm. Telling people to go against their peer group never works. A better strategy is the reverse: give people credible evidence that among their peers, good behavior is the social norm.