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family structure & child outcomes
The operative claimOn average, children whose parents divorce or separate score modestly lower on psychological adjustment, conduct, academic achievement, and social relationships than children in continuously married families, and face elevated long-run risk of depression and substance use; but effect sizes are small, most children adjust well, and much of the gap is explained by interparental conflict, parenting, income, and pre-existing differences rather than the divorce event itself.
Established that parental divorce is associated, on average, with modestly worse child outcomes; the agreed nuance is that the causal effect is small and substantially confounded.
Supported by multiple meta-analyses (Amato; Auersperg 2019, 54 studies, N≈506,000; Sands 2017) with small effect sizes. Genetically-informed and quasi-experimental work (D'Onofrio & Emery) indicates much of the association is confounded by selection. Harm concentrates where divorce ends a low-conflict union or where post-divorce interparental conflict is high.
Amato, P. R (2001). Children of divorce in the 1990s: An update of the Amato and Keith (1991) meta-analysis. Journal of Family Psychology.
Meta-analysis
Children with divorced parents scored significantly lower on academic achievement, conduct, psychological adjustment, self-concept, and social relations, with generally small effect sizes.
doi.org/10.1037/0893-3200.15.3.355Auersperg, F., Vlasak, T., Ponocny, I., & Barth, A (2019). Long-term effects of parental divorce on mental health — A meta-analysis. Journal of Psychiatric Research.
Meta-analysis
Parental divorce was associated with elevated adult risk of depression (OR 1.29), suicide attempt (1.35), distress, and substance use, with effect sizes decreasing over recent decades.
doi.org/10.1016/j.jpsychires.2019.09.011Sands, A., Thompson, E. J., & Gaysina, D (2017). Long-term influences of parental divorce on offspring affective disorders: A systematic review and meta-analysis. Journal of Affective Disorders.
Meta-analysis
Parental divorce was associated with increased adult offspring depression (OR 1.56) but not significantly with anxiety; the depression effect was not weaker in more recent decades.
doi.org/10.1016/j.jad.2017.04.015Lansford, J. E (2009). Parental divorce and children's adjustment. Perspectives on Psychological Science.
Review
Reviews how income, interparental conflict, parenting, and parental well-being mediate links between divorce and child adjustment, and how timing and predivorce adjustment moderate them.
View sourceCounter-authority (1). Studies an adversary may cite — surfaced deliberately so the grade is honest about its limits.
D'Onofrio, B., & Emery, R (2019). Parental divorce or separation and children's mental health. World Psychiatry.
Review
Emphasizes that much of the association between divorce and child mental health reflects confounding (genetic and environmental selection), so the average causal effect is smaller than raw associations imply.
View source4 supporting · 1 counter verified sources
Average effects are small and most children are resilient; genetically-informed designs show much of the association is confounding; ending a high-conflict marriage can benefit children; and effects vary by sex, age, and culture and are sometimes larger when divorce ends a low-conflict union.