Medical Definition of Psychologist, clinical
Psychologist, clinical: A professional specializing in diagnosing and treating diseases of the brain, emotional disturbance, and behavior problems. Psychologists can only use talk therapy as treatment; you must see a psychiatrist or other medical doctor to be treated with medication. Psychologists may have a master's degree (MA) or doctorate (Ph.D.) in psychology. They may also have other qualifications, including Board certification and additional training in a type of therapy.
Last Editorial Review: 5/13/2016
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