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. 2021 Mar 23;4(2):543–552. doi: 10.1021/acsptsci.1c00018

Table 3. Means and Standard Deviations of Acute Subjective Experiences and Persisting Effects among the Total Sample and among Those with Alcohol Misuse/AUD or Drug Misuse/DUD as a Function of Whether Conditions Improved or Did Not Improve Following Mescaline Usea.

    alcohol misuse/AUD (n = 72)
drug misuse/DUD (n = 85)
variables total sample (N = 452) better (n = 48) no change or worse (n = 2) t-stat d better (n = 58) no change or worse (n = 27) t-stat d
psychological insight (PIQ) 2.4(1.2) 3.2(1.0) 1.9(1.2) –5.0*** 1.2 3.2(0.9) 2.0(1.0) –5.7*** 1.3
mystical type effects (MEQ) 3.2(1.1) 3.8(0.8) 3.0(1.1) –3.5** 0.8 3.8(0.8) 2.9(1.2) –4.4*** 0.9
challenging effects (CEQ) 0.6(0.7) 0.7(0.6) 0.5(0.4) –1.2 NS 0.8(0.6) 0.6(0.4) –0.9 NS
ego dissolution (EDI) 2.4(1.3) 3.0(1.1) 2.2(1.3) –2.5* 0.7 2.9(1.2) 2.1(1.1) –2.7** 0.7
personal meaning 4.6(1.4) 5.1(1.3) 4.3(1.8) –2.3* 0.5 4.8(1.3) 4.2(1.5) –2.0 NS
spiritual significance 4.4(1.9) 5.2(1.4) 4.0(2.1) –3.0** 0.7 4.9(1.4) 3.6(2.2) –3.4** 0.7
psychologically challenging 2.8(2.1) 3.3(2.3) 2.4(2.4) –1.5 NS 3.0(2.0) 2.1(1.9) –1.9 NS
psychologically insightful 4.1(1.7) 5.0(1.5) 3.7(2.1) –3.0** 0.7 4.7(1.5) 3.5(1.6) –3.4** 0.8
well-being/life satisfaction 2.1(1.1) 2.6(0.8) 1.6(1.1) –5.0*** 1.0 2.5(0.7) 1.6(1.2) –4.4*** 0.9
life’s purpose 1.8(1.1) 2.5(0.8) 1.2(1.2) –5.6*** 1.3 2.3(1.0) 1.3(1.1) –4.1*** 1.0
life’s meaning 1.8(1.2) 2.4(0.8) 1.1(1.1) –6.0*** 1.4 2.1(1.0) 1.0(1.0) –5.4*** 1.1
social relationships 1.6(1.3) 2.3(0.8) 0.8(1.3) –5.9*** 1.4 2.2(0.9) 0.9(1.6) –4.6*** 1.0
attitudes about life 1.9(1.1) 2.5(0.7) 1.3(1.5) –4.8*** 1.0 2.4(0.8) 1.5(1.5) –3.8*** 0.8
attitudes about self 1.8(1.1) 2.4(0.9) 1.0(1.1) –5.7*** 1.4 2.3(0.9) 1.2(1.1) –4.9*** 1.1
relationship to nature 2.0(1.0) 2.7(0.7) 1.5(1.1) –5.6*** 1.3 2.6(0.7) 1.6(1.1) –5.2*** 1.1
behaviors 1.5(1.1) 2.3(0.9) 0.8(1.3) –5.5*** 1.3 2.1(1.0) 0.9(1.4) –4.5*** 1.0
how spiritual you are 1.6(1.2) 2.3(1.0) 1.2(1.1) –4.4*** 1.1 2.1(1.0) 1.2(1.2) –3.6** 0.8
attitudes about death 1.2(1.2) 1.8(1.3) 0.7(1.1) –3.9*** 0.9 1.6(1.3) 0.8(1.2) –3.0** 0.6
views re: true nature of reality 1.7(1.2) 2.4(1.0) 1.4(1.1) –3.6** 1.0 2.1(1.1) 1.4(1.2) –2.8** 0.6
a

*p < 0.05, **p < 0.01, ***p < 0.001. Note: Cohen’s d was calculated to estimate effect sizes and is interpreted as 0.2 = small, 0.5 = medium, 0.8 = large. Scores on the PIQ, MEQ, and CEQ range from 0 to 5, and ratings of subjective well-being can range from −3 to +3.