Colleges and universities must report the number of crimes on campus and provide warnings if safety is threatened.
The investigation was launched after the arrest of former football defensive coordinator Jerry Sandusky on sexual abuse charges. Two university officials were arrested on charges they failed to notify authorities after being told about an incident.
Education Secretary Arne Duncan says the allegations, if true, are a tragedy for the boys. He says it would be even worse if officials knew about the abuse and didn't report it.
The Office of Financial Aid is conducting the investigation. The Office of Civil Rights also is considering whether it should investigate.