Comparing Children's Behavior Problems in Biological Married, Biological Cohabitating, and Stepmother Families in the UK.

A large body of research shows that children who live with two married biological parents have lower levels of externalizing and internalizing behavior problems compared to their peers in other family structure, including cohabitating biological families. Such patterns suggest that marriage provides a uniquely protective family environment, though we know less about children in the obvious counterfactual case: married stepfamilies. While research suggests children with stepfathers have more behavior problems than those living with married biological parents, we know little about how children with stepmothers fare, or how children with stepparents fare compared to those living with cohabiting biological parents. We use the Millennium Cohort Study (MCS) sweep 6 to compare children living with married biological parents, married fathers and stepmothers, and cohabiting biological parents. We find that family structure has no significant relationship with children's internalizing behavior problems, but that children living with a stepmother and biological cohabitating families exhibit more externalizing behavior problems than do those living with married biological parents. Covariates that indicate both physical and social family environments must be considered together to explain differences in married-parent families on externalizing behavior problems.

Gendered Associations between Single Parenthood and Child Behavior Problems in the United Kingdom.

Internalizing and externalizing behavior problems are associated with a variety of negative child outcomes, but these conclusions have been drawn from research that usually compares children in families with two biological, married parents to all other family types. We compare behavior problems across two-parent, single-mother, and single-father families, which allows us to explore competing gender theories as possible explanations for why child behavior outcomes may be different across these three categories. Results from analyses of the UK Millennium Cohort Study suggest that while children in both single-mother and single-father families initially look like they experience more behavior problems than those in two-parent families, controlling for physical and, especially, social resources explains potential differences. Similarly, when single mothers and single fathers occupy similar family environments in terms of physical and social resources, their children report similar behavior. In contrast to findings from the US, children of single mothers who occupy similar family environments as children in two-parent families in terms of resources perform slightly better in terms of externalizing behavior problems than their two-parent counterparts. We conclude that constructivist theories more accurately explain gendered parenting behavior and its consequences for child behavior problems. Environmental factors such as income, parental closeness, and participation in extracurricular activities have a significant effect on child behavior problems.