Developing Guidelines and Competencies for the Training of Psychedelic Therapists Janis Phelps Journal of Humanistic Psychology, 2017, 1–38 DOI: 10.1177/0022167817711304   Abstract Research since the 1950s has shown that psychedelic-assisted psychotherapy has had significant positive effects in reductions of specific clinical symptoms and increases in quality of life as measured on a variety of indices. The intensity of focus on evidence-based outcomes, however, has resulted in a paucity of active discussions and research on the core competencies of the therapists themselves. The context of the history of psychedelic research reveals how this neglect of therapist variables occurred. With current discussions of Phase 3 and expanded access [...]