Instructions: Looking back on the entirety of your psilocybin session, please rate the degree to which at any time during that session you experienced the following phenomena. Answer each question according to your feelings, thoughts, and experiences at the time of the psilocybin session. In making each of your ratings, use the following scale:
- 0 — none (not at all)
- 1 — so slight cannot decide
- 2 — slight
- 3 — moderate
- 4 — strong (equivalent in degree to any other strong experience)
- 5 — extreme (more than any other time in my life and stronger than 4)
- Maclean KA. Factor Analysis of the Mystical Experience Questionnaire: A Study of Experiences Occasioned by the Hallucinogen Psilocybin. J Sci Study Relig (4):721–737 ().