Catherine A. Sanderson

People may quash their own beliefs to fit in with what they think the group believes. Andrew Lichtenstein/Corbis News via Getty Images

Dozens of men failed to stop an alleged gang rape at Cornell – here’s the misperception that keeps bystanders from intervening and how to short‑circuit it

People may accept bad behavior – even sexual assault – when they overestimate how acceptable their peers think it is. But there are ways to undermine this thinking and make intervention more likely.

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