Exploratory factor analysis of responses from 1,602 psilocybin users retained 30 items from the Mystical Experience Questionnaire and revealed a reliable four‑factor structure (unity/noetic/sacredness; positive mood; transcendence of time/space; ineffability), with convergent and construct validity and replication in an independent sample (N=440). These results provide initial evidence that the 30‑item MEQ is a valid, reliable tool for measuring single hallucinogen‑occasioned mystical experiences.
- Published
- Journal
- Journal for the Scientific Study of Religion
- Authors
- Griffiths, R. R., Johnson, M. W., Leoutsakos, J. S., MacLean, K. A.