 - Exclusionary Psychiatric Conditions: Children with maniahypomania andor schizophrenia will be excluded. The following comorbid diagnoses will not be excluded unless they are determined to be the primary cause of ADHD symptomatology see below for description of this decision process: Post Traumatic Stress Disorder, Phobias and Anxiety Disorders, Obsessive Compulsive Disorder, Major Depression Dysthymia, Eating Disorders, Elimination Disorders, Trichotillomania, Tic Disorder, Oppositional Defiant Disorder, Conduct Disorder. 