Personal stories matter. Data shows whether they are isolated.

U.S. parents estimated to be non-reciprocating targets of parental alienating behaviors.

U.S. children estimated to be moderately to severely alienated from a parent.

Reported a period of estrangement from fathers versus mothers in a national longitudinal U.S. study.

Domestic-relations cases in a national study involved at least one self-represented party.

A peer-reviewed review identified 43 empirical studies of parental alienation published between 2000 and 2018, with research examining patterns, impacts, assessment, and professional perspectives.

Five years after parental separation, 55% of mothers in a longitudinal study of 408 families reported father-child contact occurring less than once every two weeks.

In a nationally representative UK longitudinal study, father-child contact declined with time after separation even among fathers who had been more involved before separation.

A U.S. longitudinal study found that approximately 23% of nonresident fathers followed a high-declining contact trajectory over a 14-year observation period.

In a longitudinal study of separated parents, greater post-separation parental conflict predicted lower father-child physical contact two years later; the reverse relationship was not found.

A two-year longitudinal study found that parental alienating behaviors predicted later adolescent problem behaviors, with disrupted parent-child attachment and emotion-regulation difficulties helping explain the relationship.

Among children and adolescents involved in family-court disputes, those with measured signs of parental alienation showed greater emotional and behavioral difficulties, including oppositional, conduct, anxiety, social, and attention-related problems.

Greater father involvement and father-child closeness were associated with fewer adolescent internalizing and externalizing behavior problems, including among children with nonresident fathers. Father involvement was particularly salient for girls' internalizing problems.

A systematic review of longitudinal studies found evidence that active father involvement was associated with better social, behavioral, and psychological outcomes, including fewer psychological problems among young women and reduced delinquency in disadvantaged populations.

Two longitudinal studies following girls from childhood into adolescence found greater exposure to father absence was strongly associated with earlier sexual activity and increased risk of adolescent pregnancy.