Of course, what this really proves is that the students with ADHD should be grouped together, and taught with different methods, rather than being “mainstreamed” all together.
Needs a patient teacher too.
"Mainstream" is administrator speak for "we're throwing in the towel" or "we need to make room for kids that are relatively more screwed up". At 27, my oldest still has ADHD problems. The San Diego school system did a pretty good job. He has about half his college courses completed toward a degree in geology, but his capacity to handle multiple classes is dragging the process out. My youngest is 20. He has ADHD too, but the Idaho schools failed him in 8th grade (when we moved from San Diego). He seems to be reaching a point where is a ready to launch on academic issues.