Here is a statement from the ASGPP, collecting these to help with the wording of a brochure I am writing for Supervision Training. The training will use Psychodrama as a training method.
Conceived and developed by Jacob L. Moreno, MD, psychodrama employs guided dramatic action to examine problems or issues raised by an individual (psychodrama) or a group (sociodrama). Using experiential methods, sociometry, role theory, and group dynamics, psychodrama facilitates insight, personal growth, and integration on cognitive, affective, and behavioral levels. It clarifies issues, increases physical and emotional well being, enhances learning and develops new skills.