d if these behaviors are situational, do not produce impairment at home and school, or are clearly identified as symptoms of other disorders (Barkley, 1990, p. 167). There is some suggestion clinically that asthma may be more prevalent in ADHD children. This disorder occurs in people of every level of intelligence, every culture, and every socioeconomic strata. However, it is much more commonly diagnosed in the United States than in Europe, and the s!
             timulant medications are used vastly more in the United
             ...