John Wilkes Booth was the son of prominent, wealthy actors. He, too, became an actor and was so popular, he was one of the first to have his clothes ripped off by fans. Hulton Archive/Getty hide caption
Psychology is the systematic investigation of the human mind, including behavior and cognition. It thus encompasses both normal and abnormal behavior. On the other hand, psychiatry is a branch of medicine dealing with mental illness.
An outpatient psychiatric evaluation is conducted in a psychiatrist's office or other outpatient mental health facility. A comprehensive evaluation includes a personal interview, mental status exam, prior medical history to include both physical and mental health, as well as additional diagnostic exams.