It can be simultaneously underdiagnosed and overdiagnosed. http://slatestarcodex.com/2014/09/17/joint-over-and-underdiagnosis/ http://slatestarcodex.com/2014/0

It can be simultaneously underdiagnosed and overdiagnosed. http://slatestarcodex.com/2014/09/17/joint-over-and-underdiagnosis/ http://slatestarcodex.com/2014/09/17/joint-over-and-underdia... > Suppose that 3% of the population has ADHD. > Suppose that of people with ADHD, 50% of them realize they have ADHD like symptoms and go to a psychiatrist to get checked out. > Suppose that of people without ADHD, 10% of them falsely believe they have ADHD and also go to a psychiatrist to get checked out.