Table 2 The difference in depression (PHQ-9) between (A) psychedelic users and (B) matched non-users, controlling for Big Five personality with ANCOVA.

From: Personality traits explain the relationship between psychedelic use and less depression in a comparative study

 

Depression (PHQ-9)

Drug use (DUDIT)

F

p

η2

F

p

η2

Group A vs B (without personality)

16.0

< .001

.02

303

< .001

.29

Group A vs B

3.7

.05

.00

186.1

< .001

.20

Neuroticism

211.5

< .001

.23

3.8

.05

.00

Extraversion

2.1

.15

.00

2.0

.16

.00

Openness

0.7

.41

.00

0.8

.39

.00

Agreeableness

1.7

.19

.00

18.0

< .001

.02

Conscientiousness

10.7

< .001

.01

5.4

.02

.01

  1. F = Fischer’s ratio between-group versus within-group variance. p = significance test by ANCOVA. η2 = explained % variance of dependent variable.
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