Background and Methods: Fifty-eight boys and twenty girls with early onset conduct problems whose parents received the Incredible Years (IY) parent treatment program when they were 3?8 years (mean 58.7 months) were contacted and reassessed regarding their social and emotional adjustment 8?12 years later. Assessments included home interviews with parents and teenagers separately.
Results and conclusion: Adolescent reports indicated that 10% were in the clinical range on internalizing behaviors, 23% had engaged in major delinquent acts, and 46% reported some substance use. Eighteen percent of children had criminal justice system involvement and 42% had elevated levels of externalizing behaviors (mother report). Post-treatment factors predicting negative outcomes (delinquent acts) were maternal reports of behavior problems and observed mother?child coercion.