Arresting the normal decline of satisfaction of new parents to near-clinical levels is noteworthy because relationship dissatisfaction is one of the strongest predictors of partner physical assault. Managing relationship conflict is critical to the health and well-being of both parents and their children. Given the high prevalence of partner physical and emotional aggression (a precursor to the more serious form labeled "intimate partner violence" [IPV]) in new parents) among perinatal parents, the need for efficacious prevention services is acute.