All it took was a map to convince professors Stephen Hinshaw and Richard Scheffler that it must be some kind of policy issue driving a recent explosion in cases of ADHD.
And a convenient natural experiment — in the form of the federal government’s No Child Left Behind — provided the answer, the two experts argue in a new book. It’s school testing, they say.
“When you look at that, you get the closest thing there is to a smoking gun,” says Richard Scheffler, of the University of California Berkeley who co-authored the book, “The ADHD Explosion”, which was just published this month.
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