Most notably, two-thirds of victims say they had been drinking alcohol just before the incidents.
Other potential risk factors, the poll found, are casual romantic encounters known as "hookups" and the presence on campus of fraternities and sororities.
"I just remember sobbing and sobbing and sobbing the next day. Their assailants used force or threats of force, or they attacked while their victims were incapacitated. Three in 10 said friends or acquaintances had confided to them in college that they were victims of sexual assault. The struggle continued until Mac Pherson managed to open the door and flee. "That was sexual assault."She didn't report the attack to authorities.
The poll yields insights from current and recent students on that issue and others:-- They are torn over sexual consent.
Forty-six percent said it's unclear whether sexual activity when both people have not given clear agreement is sexual assault.
Kristina Erickson, 23, walks her dog on April 27 near Phoenix, where she is a teacher.
She graduated in 2013 from Beloit College in Wisconsin, where she was assaulted by a man she didn't know at a fraternity house.
In all, the poll found, 25 percent of young women and 7 percent of young men say they suffered unwanted sexual incidents in college.
The Post-Kaiser poll, one of the most comprehensive to date on an issue roiling the nation's colleges, provides evidence that sexual assault is often connected to factors woven deeply into campus culture.
Non-students, the BJS said, were raped or sexually assaulted more often than students.
The 20 studies differed significantly in methodology.
She said she worried about whether she would ruin the man's future and wondered what to make of what had happened: Had there been a misunderstanding? College sexual assault, a long-hidden problem, emerged as an issue in the 1980s along with the term "date rape," describing a certain kind of sexual crime involving friends or acquaintances.
The date rapist — someone who ignored a "no" or never sought a "yes" — contrasted with the stereotype of the rapist as a predator lurking in the dark.
(Nick Anderson)A 21-year-old at a public university in the Southeast who participated in the poll said she was raped by a male student who escorted her out of a nightclub after she suddenly became woozy and separated from a group of friends. "I would never wish what happened to me to happen to anyone."The poll defined sexual assault to include five types of unwanted contact: forced touching of a sexual nature, oral sex, vaginal sexual intercourse, anal sex and sexual penetration with a finger or object.