“Parental love is the single most important factor in a child’s life”.
In the beginning (1960), the theory focused on the effects of perceived parental acceptance- rejection in childhood and extending into adulthood. At that time the theory was called “parental acceptance- rejection theory” (PARTheory). But by 2000 the theory had broadened to include intimate adult relationships, relationships with siblings, peers, grandparents, and other significant interpersonal relationships throughout the lifespan. This shift in emphasis led in 2014 to the transition of the theory and its name from PARTheory to its current designation: Interpersonal acceptance-rejection theory (IPARTheory). Despite this change in name and emphasis, significant portions of the theory continue to feature the effects, causes, and other correlates of children’s perceptions of parental acceptance-rejection, and of adults’ remembrances of parental acceptance- rejection in childhood. This portion of the theory is emphasized in this chapter.