Abstract
We compared partner abuse by cohabiters and daters among 21-year-olds. Cohabiters were significantly more likely than daters to perform abusive behaviors. We identified factors that differentiate cohabitors from daters and tested whether these factors explained the difference in partner abuse. As controls in regression models predicting abuse, none of these factors individually explained the difference in partner abuse between cohabiters and daters. With all factors added to the model simultaneously, the effect of cohabitation remained significant, but was substantially reduced. These findings have intervention implications because premarital cohabitation is a risk factor for abuse after marriage.