A 9-year-old impulsive boy was treated with a combination of verbal self-instructions and response cost. The program was sequentially applied to inappropriate "switches" in each of three target behaviors (topics, games, rules) according to a multiple baseline design. Positive change in all of the target behaviors was evident at posttreatment.…

Two experiments were implemented in which hyperactive children were exposed to models of their own age level. It was hypothesized that modeling treatments designed to demonstrate reflective problem-solving strategies would improve the problem-solving ability of both normal and hyperactive children, and that, concomicantly, children's ability to…

This study examines two questions: (1) are the natural environmental contingencies under which reflective and impulsive children operate different? and (2) if so, which, if any of these differences, predict the nature of behavior change? Forty impulsive and reflective children and their mothers were observed while solving discrimination problems…

This study investigated whether the stimulant methylphenidate (Ritalin) would differentially affect performance on a test of cognitive style by hyperactive children. Subjects were 55 children, (ages 7 to 15) referred to the Learning Clinic at the Hospital for Sick Children, Toronto, Canada for hyperactivity and/or learning problems. A paired…