The graduate degrees that licensed psychologists may have are:

The Doctor of Philosophy is an academic degree earned in four to seven years. Many psychologists, therapists, counselors, and coaches hold a doctorate of philosophy. A PhD in psychology emphasizes theory as well as statistics and data gathering. Psychologists with a PhD are also fully trained in the assessment and treatment of all behavioral conditions. (American Psychological Association)

The Doctor of Psychology, PsyD, is a professional degree that focuses on the practical application of therapy and counseling.

Many professionals with a Doctor of Education practice therapy. They are trained in child development and education, sometimes with a focus on educational planning and assessment. A total of four years of study is usually necessary to receive an EdD.

Some psychologists have chosen to obtain additional credentials in psychology and therapeutic methods:

Board certification by the American Board of Forensic Psychology (ABFP). The Forensic Board is an affiliate of the ABPP that offers a Diploma in Forensic Psychology to those psychologists who satisfactorily complete the requirements for achieving Specialty Board Certification. (American Board of Forensic Psychology)

Established in 1947, the American Board of Professional Psychology (ABPP) grants Diplomate certification to licensed psychologists who demonstrate an advanced level of competency and experience in their service specialty. To obtain this certification, a psychologist must undergo a rigorous written and oral examination process by a team of examiners certified in that specialty.

A Certified Group Psychotherapist is a clinical mental health professional who meets nationally accepted criteria of education, training, and experience in group psychotherapy.

The Certified Hypnotherapist has received training in hypnotherapy.