Two studies evaluated effects of First Step to Success, a collaborative home and school early intervention program designed for kindergartners who show signs of emerging antisocial behavior. Two sets of 5-year-old male twins were the subjects of the 4-year studies. Exposure to the First Step program produced powerful behavior changes that were…

Case studies were conducted of 10 children (ages 4-6) with behavior risks. Hypotheses regarding the function and maintenance of misbehaviors suggested that children received immediate tangible rewards, children received interaction with the teacher, and children received increased attention from adults. Intervention to counter these functions…