Compared the performance of learning disabled and normal-achieving third- and fourth-grade children on Kagan's Matching Familiar Figures Test to determine group differences along the impulsivity-reflection dimension. Overall results suggest that learning disabled children are not more impulsive but rather use poor strategic behavior in processing…

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…