Peer-reviewed article
The Impact of Complex Family Structure on Child Well‐being: Evidence From Siblings
Tarek Mostafa, Ludovica Gambaro, Heather E. Joshi ·
Summary
Written by AI, not yet AICS's view · claude-sonnet-5-5This study uses the UK Millennium Cohort to look at children aged 3 and 5 who have older siblings. It asks whether children living with both biological parents and only full siblings have better emotional and behaviour outcomes than other children. It also asks whether having non-full siblings matters independently of parents' partnership status. Accounting for family circumstances and resources explained much of the link between complex family structure and worse outcomes. Whether siblings were full or not made little difference to outcomes in general.
Key points
- Adjusting for measured family circumstances and resources in cross-sectional regressions accounted for much of the adverse association of family complexity with child outcomes.
- Controlling for unobserved family and child fixed effects did not attenuate all estimates further.
- Fixed unobservable factors appeared to be masking underlying associations, and allowing for them intensified some modest estimates.
- Boys with single or stepparents but only full siblings showed excess externalizing behavior problems.
- Girls with single mothers had raised chances of internalizing problems.
Limitations
The abstract does not give sample size, effect sizes or how outcomes were measured, and the associations found were modest. It covers only the UK and children aged 3 and 5 with older siblings, so it cannot tell us about other ages or settings.
Abstract
Evidence from the United Kingdom Millennium Cohort on children at ages 3 and 5 with older siblings addresses the questions of whether those living with both biological parents and only full siblings have better emotional and behavior outcomes than other children, and whether nonfull siblings affect children's outcomes independently of parents' partnership status. Adjusting for measured family circumstances and resources in cross‐sectional regressions accounted for much of the adverse association of family complexity with child outcomes. Controlling for unobserved family and child fixed effects did not, however, attenuate all estimates further. Fixed unobservable factors appeared to be masking underlying associations. Allowing for them intensified some, albeit modest, estimates. These revealed excess externalizing behavior problems for boys with single or stepparents but only full siblings. For girls with single mothers, the chances of internalizing problems were raised. Whether siblings were full or not made little difference to outcomes in general.