This is more about a common prejudice (or not) about fraternities than about some famous claim. I want to know whether frat members rape more than the common non-fraternity member?
In Opinion: 'Rapebait' e-mail reveals dark side of frat culture - CNN, John Foubert says:
(A study) I published in 2007 with my colleagues Jerry Tatum and J.T. Newberry found that fraternity men were three times more likely to commit rape than other men on college campuses. It was the third study showing that fraternity men are three times more likely to rape.