Most of that increase reflects bigger loads for little kids. An academic study found that whereas students ages 6 to 8 did an average of 52 min. of homework a week in 1981, they were toiling 128 min. weekly by 1997. And that’s before No Child Left Behind
Academic difficulties are also frequent. The symptoms are especially difficult to define because it is hard to draw a line at where normal levels of inattention, hyperactivity, and impulsivity end and clinically significant levels requiring intervention begin. To be diagnosed with ADHD, symptoms must be observed in two different settings for six months or more and to a degree that is greater than other children of the same age.