A third of sexual assaults on New Zealand university students go unreported, according to new research published in The New Zealand Medical Journal.
In a survey of 1500 students, 28 percent reported at least one form of sexual assault, including 15 percent who reported rape.
In nearly a third of those cases, survivors didn't tell anyone about their experience.
Associate Professor Melanie Beres, from the University of Otago sociology department, speaks to Corin Dann.