Obsessive Compulsive Disorder
Obsessive Compulsive Disorder (OCD) is diagnosed when there are persistent intrusive thoughts and/or symptoms of irrational ritualistic behavior. A person must exhibit these symptoms for a large period of time over the course of at least two weeks. He or she cannot control or prevent their behavior. Psychiatrist and psychologists diagnoses OCD using the Obsession The Yale-Brown Obsessive Compulsive Scale test.