There are several different online ADHD tests available. Usually, when a child or adult with ADHD goes in for a checkup at a clinic or hospital, the patient will be examined by one of several specialists. Typically, however, these specialists specialize in diagnosing and treating Attention Deficit Hyperactivity Disorder or ADD. The reason for this is that there are some subtypes of ADHD that need to be properly treated and diagnosed. In most cases, treatment is provided on a trial and error...