
UP-TO-DATE, RESEARCH BASED INFORMATION ABOUT PSYCHEDELICS.
The Mystical Experience Questionnaire 4-Item and Challenging Experience Questionnaire 7-Item
The notably strong association of brief scales with full versions combined with associations with therapeutic outcomes provide initial support for the MEQ-4 and CEQ-7. These findings, combined with substantial reductions in participant/patient burden, support the use of the MEQ-4 and CEQ-7 for a wide variety of research and patient treatment settings.