The DOJ’s Bureau of Justice Statistics created a campus survey to measure sexual victimization, and put out this report three years ago: https://www.bjs.gov/content/pub/pdf/ccsvsftr.pdf
After extensive pilot testing (detailed in the report) they ran the test on nine different colleges, in different geographical regions, 2-year and 4-year, public and private, small and big. They emphasize that the topline result isn’t representative of all colleges, but we can see that all the different kinds of colleges report what I think is an alarmingly high rate of sexual violence. We can also see that the BJS National Crime Victimization Survey vastly underestimates the rate of sexual violence at colleges, for reasons that have already been well publicized.
The survey had a superb response rate, over 50% for women students, 40% for men.
In the survey, rape is defined as nonconsensual sexual penetration. Sexual battery is defined as other nonconsensual sexual touching, including forced kissing, grabbing, fondling, etc. Sexual assault is defined as rape or sexual battery.
Averaged over all schools (not over victims, but schools), the yearly prevalence of sexual assault was 10.3%. That is, an average of 10.3% of female students said they’d experienced sexual assault in the 2014-15 school year. For rape, it was 4.1%; for sexual battery, 5.6%.
At the worst college for rape, College 5, 7.9% of the women said they’d been raped in the last year. At the worst college for sexual battery, College 1, 13.2% of the women said they’d experienced sexual battery.
And now, a quiz time for you: What percent of women students said they had experienced “sexual advances, gestures, comments, or jokes that were unwelcome to you” in the previous school year?