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Group Therapy

  1. William Piper

Published Online: 30 JAN 2010

DOI: 10.1002/9780470479216.corpsy0393

Corsini Encyclopedia of Psychology

Corsini Encyclopedia of Psychology

How to Cite

Piper, W. 2010. Group Therapy. Corsini Encyclopedia of Psychology. 1–3.

Author Information

  1. University of British Columbia

Publication History

  1. Published Online: 30 JAN 2010


Group therapy is a form of psychosocial therapy that is conducted by one or more trained therapists with a group of patients or clients. Psychosocial therapy involves an extended verbal dialogue among patients and therapists and is believed to operate primarily by means of psychological mechanisms (e.g., insight regarding relationships or positive reinforcement). In contrast, treatment with medication management involves a brief verbal exchange among the parties and is believed to operate primarily by means of physical mechanisms (e.g., increased levels of neurotransmitters).


  • efficacy;
  • efficiency;
  • group therapy;
  • therapeutic factors