According to Colorado State University social psychologist Jennifer Harman, about 22 million American parents have been the victims of behaviors that lead to something called parental alienation. Having researched the phenomenon for several years, Harman is urging psychological, legal and child custodial disciplines to recognize parental alienation as a form of both child abuse and intimate partner violence. Harman has authored a review article in Psychological Bulletin defining the behaviors associated with parental alienation and advocating for more research into its prevalence and outcomes.