Contents: Good Friday Experiment/ March Chapel Experiment Friday, April 20, 1962, Walter Pahnke, Advisors Timothy Leary The Psychedelic Experience Scale (PES) (revived by Stocker 2024) MEQ43 (Richards/Pahnke 1969) MEQ43 (Richards 1975) APZ (Dittrich 1975) O/A/V for APZ 1975 (Dittrich 1985) O/A/V for APZ 1975 (Dittrich 1993/1994) HRS Hallucinogen Rating Scale (Strassman 1994) OAV 1994 (Dittrich, … Continue reading References for Psychedelic Psychometrics Questionnaires