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child witnesses / disclosure
child witnesses / forensic interviewing
custody / parental relocation & child outcomes
custody / scientific status of parental alienation
custody arrangements / joint vs sole physical custody
custody schedules / infant overnights & attachment
family conflict / interparental conflict & child adjustment
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Showing 10 verified claims
family law / same-sex parenting & child outcomes
Children raised by same-sex (lesbian or gay) parents do not differ from children of different-sex parents in psychological adjustment, cognitive ability, or social development; what predicts child outcomes is family process — parenting quality, parental well-being, stigma, and support — not parental sexual orientation.
Evidence:
High
Consensus:
Established
Certified
parental mental health / child development
Maternal (and more broadly parental) depression is a well-replicated risk factor for children's emotional, behavioral, and cognitive difficulties; the average associations are small, are strongest when the depression is severe and chronic, extend from infancy into adolescence, and diminish when the parent's depression is effectively treated.
family law / child suggestibility & forensic interviews
family law / child suggestibility & forensic interviews
family law / custody mediation versus litigation
family law / custody mediation versus litigation
family law / grandparent involvement & child well-being
family law / grandparent involvement & child well-being
family law / same-sex parenting & child outcomes
family law / same-sex parenting & child outcomes
family law / screen media & early child development
family law / screen media & early child development
family law / stepfamily structure & child outcomes
family law / stepfamily structure & child outcomes
family structure / parental divorce & separation
family structure / parental divorce & separation
family violence / children exposed to intimate partner violence
family violence / children exposed to intimate partner violence
parental mental health / child development
parental mental health / child development
parenting / child development
parenting / child development
parenting / father involvement & child well-being
parenting / father involvement & child well-being
Evidence:
High
Consensus:
Established
Certified
family law / stepfamily structure & child outcomes
Children in stepfamilies show, on average, somewhat more behavioral and academic difficulties than children in intact two-biological-parent families, but the differences are modest and are driven far more by the quality of the stepparent-child relationship and family process than by stepfamily structure itself; warm, involved stepparent relationships predict better child outcomes.
Evidence:
Moderate
Consensus:
Established
Certified
family law / custody mediation versus litigation
Custody and divorce mediation, compared with litigation, settles disputes faster and with higher party satisfaction and durable improvements in nonresidential-parent involvement and coparenting — benefits visible up to 12 years later in a randomized trial — without increasing conflict; however, benefits are not symmetric across parents and, in high-conflict or intimate-partner-violence cases, mediation requires safety protocols and shows no clear advantage over litigation.
Evidence:
Moderate
Consensus:
Established
Certified
parenting / child development
Parental corporal punishment (spanking) is associated with more child aggression, behavior problems, and other adverse outcomes — never with developmental benefit — across meta-analyses, 69 prospective studies, quasi-experimental matching designs, and 92 countries; average effects are modest and the causal magnitude, though not the direction, is debated.
Evidence:
Moderate
Consensus:
Established
Certified
custody arrangements / joint vs sole physical custody
Children in joint physical custody (living roughly 35% or more of the time with each parent) tend to show equal or better behavioral, emotional, academic, and relational outcomes than children in sole physical custody, and outcomes similar to children in intact families; but the evidence is observational and subject to selection, so joint custody is not established as beneficial for every family — particularly under severe ongoing conflict or family violence.
Evidence:
Moderate
Consensus:
Contested
family law / grandparent involvement & child well-being
Involved (non-custodial) grandparents are associated with modestly better grandchild adjustment — fewer emotional and behavioral problems and more prosocial behavior — with the protective association strongest in single-parent, divorced, or high-adversity families; the evidence is correlational and confounded, effects are small, and custodial grandparent care shows the opposite association, driven by the adversity that necessitated it.
Evidence:
Moderate
Consensus:
Contested
custody / parental relocation & child outcomes
A small, methodologically limited body of research suggests that post-separation relocation that increases a child's distance from a parent is, on average, associated with somewhat worse adjustment; the evidence is thin, largely retrospective or cross-sectional, confounded by conflict and selection, and the field's own experts conclude it supports no presumption either for or against relocation.
Evidence:
Low
Consensus:
Contested
custody schedules / infant overnights & attachment
Whether frequent overnight separations from a primary caregiver affect attachment security and adjustment in infants and toddlers is genuinely contested: some studies link frequent overnights to greater attachment insecurity and dysregulation in the youngest children, but the effects are small, inconsistent, and better explained by parental conflict and caregiving quality than by overnights themselves — so the science supports neither a blanket pro- nor anti-overnight presumption.
Evidence:
Low
Consensus:
Contested
custody / scientific status of parental alienation
There is no scientific consensus that "parental alienation" (or "parental alienation syndrome") is a valid, reliably diagnosable clinical condition; it is not recognized as a disorder in the DSM-5 or ICD-11, leading scholars dispute whether it has achieved construct validity, and its use in custody litigation — especially to rebut abuse allegations — is empirically associated with gendered, sometimes harmful outcomes. A child's resistance to a parent is better explained by multiple factors than by a single alienating-parent model.
Evidence:
Low
Consensus:
Disputed