The stress sensitization hypothesis holds that the severity of the effects of later life stress is greater for those individuals exposed to above average levels of environmental stress early in life. This effect may be inordinately important in the study of the effects of intimate partner violence victimization. Children that witness parental IPV in childhood are at disproportionate risk for IPV victimization later in their life. Previous research has found a positive association between IPV victimization and depression. The current study explores whether victims of IPV who have also witnessed interparental violence in childhood are more severely affected by experiences of IPV victimization later in life.