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conflict & violence exposure
The operative claimChildren's exposure to frequent, hostile, or poorly resolved interparental conflict is associated with increased internalizing and externalizing problems; the risk tracks how conflict is expressed and resolved (destructive/hostile and child-involving versus constructive) rather than the mere fact of disagreement, and operates substantially through children's emotional insecurity and spillover into parenting.
Established that destructive, hostile, or child-involving interparental conflict is associated with child internalizing and externalizing problems; debate concerns causal magnitude net of confounding.
Supported by large meta-analyses (100+ samples; tens of thousands of families) with small-to-moderate, generally enduring effect sizes. Mechanisms are well-replicated: emotional security (Cummings & Davies) and appraisals of threat and self-blame (Grych & Fincham), plus spillover into diminished parenting. Destructive, hostile, and child-involving conflict carry the risk; constructive, resolved conflict does not.
van Eldik, W. M., de Haan, A. D., Parry, L. Q., Davies, P. T., et al (2020). The interparental relationship: Meta-analytic associations with children's maladjustment and responses to interparental conflict. Psychological Bulletin.
Meta-analysis
Hostile, disengaged, and unconstructive interparental conflict are associated with children's internalizing and externalizing symptoms; most associations endure over time.
doi.org/10.1037/bul0000233Rhoades, K. A (2008). Children's responses to interparental conflict: A meta-analysis of their associations with child adjustment. Child Development.
Meta-analysis
Children's cognitive, affective, behavioral, and physiological responses to interparental conflict show small-to-moderate associations with adjustment, generally larger for internalizing than externalizing problems.
doi.org/10.1111/j.1467-8624.2008.01235.xvan Dijk, R., van der Valk, I. E., Deković, M., & Branje, S (2020). A meta-analysis on interparental conflict, parenting, and child adjustment in divorced families. Clinical Psychology Review.
Meta-analysis
Interparental conflict, parenting, and child adjustment are linked with small effect sizes; parenting (support, hostility, role diffusion) mediates the conflict–maladjustment link.
doi.org/10.1016/j.cpr.2020.101861Grych, J. H., Fincham, F. D., Jouriles, E. N., & McDonald, R (2000). Interparental conflict and child adjustment: Testing the mediational role of appraisals in the cognitive-contextual framework. Child Development.
Observational
Children's appraisals of threat and self-blame mediate the association between perceived interparental conflict and internalizing problems.
doi.org/10.1111/1467-8624.00255Cummings, E. M., George, M. R. W., McCoy, K. P., & Davies, P. T (2012). Interparental conflict in kindergarten and adolescent adjustment: Prospective investigation of emotional security as an explanatory mechanism. Child Development.
Longitudinal
Emotional insecurity in early childhood prospectively mediates the link between interparental conflict and later internalizing and externalizing problems, with autoregressive controls.
doi.org/10.1111/j.1467-8624.2012.01807.x5 supporting verified sources
Effect sizes are small-to-moderate and confounded with parenting quality, parental psychopathology, and genetic transmission; most designs are correlational; and family structure (intact versus separated) does not independently drive outcomes once conflict and parenting are accounted for.