Effects maintained 1-year later. Random assignment by classroom to intervention or control conditions in two separate studies. Random assignment to intervention or control groups in multiple studies by multiple investigators. Random assignment to intervention or control groups in multiple studies by multiple investigators. Interventions have long-term effects and are not differentially affected by child's gender, ethnicity of parent, education or social class of parent.
Interventions are cost effective.
Data concerning predictors of outcome can be obtained. Child Training Program Claims Evaluation Methods Evidence of Efficacy 4-8 year old children with conduct problems who participated in Dinosaur School showed reductions in aggressive and disruptive behavior in interactions with parents, teachers and peers compared to an untreated control group. Random assignment to intervention or control group. Randomized study currently being completed. Preliminary results suggest that child findings are replicated and show added effects of teacher training vs parent and child training programs.