Stimulant medication does not improve the academic performance or test scores of the 9% of all children in the U.S. diagnosed with ADHD, according to research reviewed in Scientific American. Rather, study habits rather than medication differentiated high- and low-performing students with the diagnosis. Additionally, training parents of children with ADHD diagnoses in stress management and behavioral interventions to help their children produced significant improvement equal to medication, with fewer long-term complications.