Global Assessment of Functioning (GAF)

Endicott J; Fleiss J; Spitzer RL; Cohen J


Last update: January 2019

Basic description

  • Published in 1976

Endicott J; Fleiss J; Spitzer RL; Cohen J

GAF © Copyright 2000, American Psychiatric Association
To evaluate a person’s psychological, social and occupational functioning on a hypothetical continuum of mental health-illness.
Therapeutic area
  • Mental Disorders
Therapeutic indication

Generic for Mental Disorders

Type of Clinical Outcome Assessment (COA)
  • clinro ClinRO
Original language(s)
  • English for the USA
Bibliographic reference(s) of the original questionnaire

American Psychiatric Association (2000) Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision. Washington, DC, American Psychiatric Association.

American Psychiatric Association (1987). Diagnostic and statistical manual of mental disorders (3rd ed.). Washington, DC

Bodlund O, Kullgren G, Ekselius L, Lindström E, von Knorring L. Axis V—Global Assessment of Functioning Scale. Evaluation of a self-report version. Acta Psychiatr Scand. 1994 Nov;90(5):342-7 (PubMed abstract)

Endicott J, Spitzer RL, Fleiss JL, Cohen J. The global assessment scale. A procedure for measuring overall severity of psychiatric disturbance. Arch Gen Psychiatry. 1976 Jun;33(6):766-71 (PubMed abstract)