This study examined the use of a progressive delay procedure with and without a concurrent activity to teach self-control to children with attention deficit hyperactivity disorder. Three participants were initially required to wait progressively longer periods of time for access to preferred edible reinforcers. After demonstrating this…

An effort was made to assess the relative effectiveness of different reinforcement systems versus traditional teaching with maladjusted boys. The subjects were 60 boys in grades 6 and 7 who participated during language arts classes, but total data were gathered on 26 boys. The boys had histories of aggressive behavior and language problems.…