Family-based prevention of adolescents' co-occurring internalizing/externalizing problems through early childhood parent factors.

OBJECTIVE We evaluated whether initiating the Family Check-Up (FCU) during early childhood prevented a severe form of psychopathology in adolescence-co-occurring internalizing and externalizing problems-and whether effects operated indirectly through early childhood maternal depression and parents' positive behavior support. METHOD Participants were drawn from a randomized controlled trial of the FCU (50.2% FCU; 49.5% girls; 46.6% Caucasian, and 27.6% Black; 13.4% Hispanic/Latino). At Ages 2 and 3, mothers self-reported depression, and primary caregivers' (PCs') positive behavior support was coded by trained observers. PCs, alternate caregivers (ACs), and teachers reported on 14-year-olds' problem behaviors. Latent profile analyses (LPAs) identified problem behavior groups for each reporter, which were outcomes in multinomial logistic regressions (PC, n = 672; AC, n = 652; teacher, n = 667). RESULTS LPAs identified a low-problem, internalizing-only, externalizing-only, and co-occurring-problem group for each reporter. For PC- and AC-reported outcomes, the FCU predicted a lower likelihood that adolescents belonged to the co-occurring group relative to the low-problem, externalizing-only (p < .05), and internalizing-only (p < .05 for PC, p < 0.10 for AC) groups; these effects operated through maternal depression (p < .05). For teacher-reported outcomes, the FCU predicted a lower likelihood that adolescents belonged to the co-occurring group relative to the low-problem, internalizing-only, and externalizing-only (p < 0.05) groups; effects operated through positive behavior support (p < 0.05). CONCLUSIONS Early delivery of the FCU indirectly prevented adolescents' co-occurring internalizing/externalizing problems in both home and school contexts by improving the quality of the early home environment. (PsycINFO Database Record (c) 2019 APA, all rights reserved).