Table 3 Mean personality traits for never, non-current, and current marijuana users.
NEO-PI-R scales | Never-user (n = 576) | Former user (n = 380) | Current user (n = 88) | F | Partial η2 |
|---|---|---|---|---|---|
Neuroticism | 50.0 (.42) | 50.4 (.50) | 50.9 (1.01) | 0.4 | .001 |
Extraversion | 49.0 (.37) | 48.5 (.44) | 49.4 (.88) | 0.7 | .001 |
Openness | 45.5 (.37)a | 46.1 (.44)a | 48.8 (.88)b | 5.5** | .011 |
Agreeableness | 51.6 (.40)a | 49.6 (.49)b | 48.4 (.98)b | 6.3** | .012 |
Conscientiousness | 49.7 (.43)a | 47.0 (.51)b | 47.0 (1.03)b | 8.0** | .016 |
N1: Anxiety | 50.5 (.38) | 50.8 (.46) | 50.6 (.92) | 0.1 | .000 |
N2: Angry Hostility | 50.0 (.41)a | 51.2 (.50)ab | 53.0 (1.00)b | 3.9* | .008 |
N3: Depression | 50.4 (.47) | 51.4 (.57) | 51.2 (1.14) | 0.7 | .001 |
N4: Self-consciousness | 49.2 (.43) | 50.0 (.51) | 49.1 (1.03) | 0.7 | .001 |
N5: Impulsiveness | 48.7 (.40) | 49.7 (.48) | 50.1 (.96) | 1.4 | .003 |
N6: Vulnerability | 49.6 (.47)a | 51.5 (.57)b | 52.2 (1.15)b | 3.7* | .007 |
E1: Warmth | 49.1 (.43)a | 47.1 (.52)b | 47.1 (1.03)ab | 4.2* | .008 |
E2: Gregariousness | 50.8 (.41) | 50.1 (.50) | 50.4 (1.00) | 0.5 | .001 |
E3: Assertiveness | 49.7 (.42) | 49.4 (.51) | 50.7 (1.03) | 0.7 | .001 |
E4: Activity | 47.4 (.40)a | 46.9 (.48)a | 50.1 (.97)b | 4.6* | .009 |
E5: Excitement-Seeking | 47.1 (.39)a | 48.5 (.47)b | 49.9 (.94)b | 4.3* | .009 |
E6: Positive Emotions | 49.0 (.42) | 47.4 (.51) | 48.4 (1.02) | 2.3 | .005 |
O1: Fantasy | 47.9 (.36) | 48.5 (.44) | 48.9 (.87) | 0.8 | .001 |
O2: Aesthetics | 48.5 (.40)a | 49.0 (.48)a | 51.4 (.96)b | 3.9* | .008 |
O3: Feelings | 46.6 (.38) | 47.3 (.46) | 48.6 (.92) | 1.9 | .004 |
O4: Actions | 45.2 (.42)a | 45.9 (.50)a | 48.1 (1.01)b | 3.2* | .006 |
O5: Ideas | 47.2 (.40)a | 46.2 (.49)a | 49.7 (.97)b | 5.7** | .011 |
O6: Values | 44.0 (.37)a | 46.1 (.44)b | 46.9 (.89)b | 7.9** | .015 |
A1: Trust | 47.3 (.43) | 46.5 (.52) | 44.7 (1.04) | 2.7 | .005 |
A2: Straightforwardness | 51.4 (.41) | 50.0 (.49) | 49.2 (.99) | 2.9 | .006 |
A3: Altruism | 51.4 (.42)a | 49.4 (.51)b | 50.4 (1.03)ab | 3.8* | .008 |
A4: Compliance | 50.4 (.45)a | 48.2 (.55)b | 47.2 (1.10)b | 5.4** | .011 |
A5: Modesty | 51.9 (.42) | 50.7 (.50) | 49.5 (1.01) | 2.8 | .006 |
A6: Tender-mindedness | 52.5 (.41) | 51.6 (.50) | 52.2 (.99) | 1.0 | .002 |
C1: Competence | 50.0 (.47)a | 47.7 (.56)b | 47.1 (1.13)b | 5.0** | .010 |
C2: Order | 47.6 (.39) | 46.5 (.48) | 45.9 (.95) | 2.1 | .004 |
C3: Dutifulness | 49.2 (.42)a | 46.2 (.51)b | 46.2 (1.01)b | 9.8** | .019 |
C4: Achievement Striving | 49.0 (.45)a | 46.6 (.55)b | 46.1 (1.09)b | 6.0** | .012 |
C5: Self-Discipline | 48.7 (.46)a | 46.5 (.55)b | 45.6 (1.10)b | 5.3** | .010 |
C6: Deliberation | 53.2 (.44)a | 50.9 (.54)b | 49.9 (1.07)b | 6.6** | .013 |