Non-students, the BJS said, were raped or sexually assaulted more often than students.
The 20 studies differed significantly in methodology.
The findings illuminate the difficulty colleges face in preventing violence that is widespread but rarely reported to authorities.
Accused students, bewildered by the scrutiny of sexual encounters they thought were consensual, complain that internal inquiries are stacked against them.
Their accounts reveal anguish, fury and confusion about incidents, on and off campus, that haunt a time of discovery and growth.
In their first years away from home, while exploring the freedom and opportunity of college life, these students learned the pain of sexual violence.
When she came to, she was groggy, standing in the bathroom of her dorm room, looking in the mirror. When she came to, she was groggy, standing in the bathroom of her dorm room, looking in the mirror. Thirty-seven percent described it as a problem on campus.
By contrast, 56 percent viewed alcohol and drug use as a problem.-- They express confidence in how colleges deal with sexual-assault reports.