A population-based, randomized universal classroom intervention trial for the prevention of disruptive behavior (i.e., attention-deficit/hyperactivity problems, oppositional defiant problems, and conduct problems) is described. Impact on developmental trajectories in young elementary schoolchildren was studied. Three trajectories were identified…

Compared the effects of cognitive-behavioral treatment, behavioral treatment or an attention-control condition on 27 non-self-controlled children. The cognitive-behavioral intervention improved teachers' ratings of self-control and children's self-reported self-concept. Off-task verbal and physical behaviors suggested treatment efficacy.…

Devised a classroom observation code that would identify hyperactive children reliably. Children referred for hyperactivity had significantly higher scores than comparison children on 12 categories. There was greater within-subject variability in the hyperactive group. Motor activity for both groups was significantly inversely related to age.…