The long-term indirect effect of the early Family Check-Up intervention on adolescent internalizing and externalizing symptoms via inhibitory control.

This study examined the long-term effects of a randomized controlled trial of the Family Check-Up (FCU) intervention initiated at age 2 on inhibitory control in middle childhood and adolescent internalizing and externalizing problems. We hypothesized that the FCU would promote higher inhibitory control in middle childhood relative to the control group, which in turn would be associated with lower internalizing and externalizing symptomology at age 14. Participants were 731 families, with half (n = 367) of the families assigned to the FCU intervention. Using an intent-to-treat design, results indicate that the FCU intervention was indirectly associated with both lower internalizing and externalizing symptoms at age 14 via its effect on increased inhibitory control in middle childhood (i.e., ages 8.5-10.5). Findings highlight the potential for interventions initiated in toddlerhood to have long-term impacts on self-regulation processes, which can further reduce the risk for behavioral and emotional difficulties in adolescence.

Child Birth Order as a Moderator of Intervention Effectiveness for the Early Childhood Version of the Family Check-Up.

Child birth order (CBO) in the family has received little attention in the field of prevention science. CBO is relevant to early interventionists from a public health perspective, as the most widely disseminated home-visiting program has traditionally targeted mothers and their first-born children. The current paper revisits a previous publication by Shaw et al. (2009) on the effectiveness of the Family Check-Up (FCU) to evaluate CBO (firstborn vs. middle vs. youngest) as a moderator of treatment effects of the FCU in relation to improvements in parenting, maternal depressive symptoms, and child outcomes from ages 2 to 4 in a sample of low-income, ethnically diverse families (N = 709) with multiple children. Results suggest that the FCU elicited improvements in observed parenting from ages 2 to 3 primarily for target children who were the youngest or middle children, but not for firstborns. Findings are discussed in the context of implications for prevention science research, dissemination, and public policy.