A psychologist is a researcher and/or a practitioner of psychology.

Psychology is now considered a separate field from psychiatry, and a psychologist is not ordinarily a medical doctor and hence is unable to prescribe psychiatric medications.

They are specially trained to provide professional counseling on psychological and emotional issues.

Psychology is such a wide field that practitioners often specialise in one particular area

• Child psychologists (who specialise in working with children and adolescents)
• Clinical psychologists
• Marriage counsellors
• Family therapists etc.

See also: List of psychologists