This study examined the effectiveness of using qualitatively different reinforcers to teach self-control to an adolescent boy who had been diagnosed with an intellectual disability. First, he was instructed to engage in an activity without programmed reinforcement. Next, he was instructed to engage in the activity under a two-choice fixed-duration…

This study, with 4 parent-child dyads in which the children (ages 9 to 11) exhibited substantial homework problems, found that goal setting and contingency contracting produced significant improvements in children's homework accuracy. Two of the subjects showed substantial improvements in on-task behavior. Parents rated the procedures highly.…