This section on the Diagnosis of Attention Deficit Hyperactivity Disorder has a LOT of information, and is fairly long.

Here are the main topics discussed on this page...

1. Discussion: Over-diagnosis of ADHD, and Under-diagnosis of ADHD
2. The Diagnostic Criteria, and symptoms of Inattention, Impulsivity, Hyperactivity
3. Steps in getting a "Good Diagnostic Work-Up"
   1. Physical Exam from your doctor
   Evaluation from a Psychologist or Therapist
4. Choosing Someone to do the Evaluation - Who is Qualified?
5. What Makes a Good Evaluation? What Elements Make Up a Good Evaluation?