For whatever reason, it's not paywalled for me. The metrics are:
>For their paper, Glowacki and his collaborators measured the emotional response Isness-D elicited in 75 participants. They based their measurements on four metrics used in psychedelics research—the MEQ30 (a mystical experience questionnaire), the ego dissolution inventory scale, the “communitas” scale, and the “inclusion of community in self” scale. Communitas is defined as an experience of intense shared humanity that transcends social structure. Participants’ responses were then compared with those given in published, double-blind psychedelics studies.
