Table 3.
Multilevel model main effects for hypotheses 1 and 2.
| Conseauences | ||||||
|---|---|---|---|---|---|---|
| Total | Social | Blackout | ||||
|
b (SE) |
95% CI |
b (SE) |
95% CI |
b (SE) |
95% CI |
|
| Hypothesis 1 | ||||||
| Type of Occasion | ||||||
| MJ-only | −1.70 (0.33)** | [−2.34, −1.06] | −0.21 (0.07)** | [−0.35, −0.08] | −0.63 (0.09)** | [−0.82, −0.45] |
| L-ALC | −1.75 (0.19)** | [−2.12, −1.39] | −0.24 (0.05)** | [−0.34, −0.14] | −0.64 (0.07)** | [−0.79, −0.50] |
| H-ALC | 0.08 (0.16) | [−0.23, 0.39] | 0.07 (0.04) | [−0.02, 0.15] | −0.04 (0.06) | [−0.16, 0.08] |
| L-SAM | −1.49 (0.33)** | [−2.15, −0.83] | −0.22 (0.09)** | [−0.40, −0.04] | −0.61 (0.13)** | [−0.87, −0.35] |
| H-SAM (ref) | ||||||
| Hypothesis 2 | ||||||
| Type of Occasion | ||||||
| MJ-only | 0.06 (0.33) | [−0.60, 0.71] | 0.03 (0.07) | [−0.11, 0.16] | 0.01 (0.10) | [−0.18, 0.20] |
| H-ALC | 1.83 (0.12)** | [1.60, 2.07] | 0.31 (0.03)** | [0.24, 0.38] | 0.60 (0.05)** | [0.51, 0.70] |
| L-SAM | 0.26 (0.34) | [−0.40, 0.92] | 0.02 (0.09) | [−0.16, 0.20] | 0.03 (0.13) | [−0.23, 0.29] |
| H-SAM | 1.75 (0.19)** | [1.39, 2.12] | 0.24 (0.05)** | [0.14, 0.34] | 0.64 (0.07)** | [0.50, 0.79] |
| L-ALC (ref) | ||||||
| Covariates (identical for both models) | ||||||
| MJ-only (Average) | −0.91 (160) | [−4.05, 2.22] | −0.46 (0.33) | [−1.11, 0.19] | −0.08 (0.53) | [−1.13, 0.97] |
| Alcohol-only (Average) | 0.37 (0.41) | [−0.44, 1.18] | 0.02 (0.09) | [−0.15, 0.19] | 0.22 (0.14) | [−0.06, 0.50] |
| SAM (Average) | 1.55 (0.93) | [−0.28, 3.38] | 0.36 (0.20) | [−0.03, 0.75] | 0.20 (0.32) | [−0.42, 0.82] |
| Female | 0.47 (0.17)* | [0.13, 0.82] | 0.06 (0.04) | [−0.01, 0.13] | 0.15 (0.06)* | [0.04, 0.27] |
| Male (ref.) | ||||||
| Thursday | 0.18 (0.10) | [−0.02, 0.37] | −0.03 (0.03) | [−0.09, 0.02] | −0.002 (0.04) | [−0.08, 0.08] |
| Friday | −0.08 (0.09) | [−0.25, 0.10] | −0.04 (0.02) | [−0.09, 0.01] | 0.01 (0.04) | [−0.06, 0.07] |
| Saturday (ref.) | ||||||
| Semester | −0.22 (0.05)** | [−0.31, −0.12] | −0.04 (0.01)* | [−0.07, −0.02] | −0.08 (0.02)** | [−0.11, −0.04] |
Notes. MJ-Only = marijuana-only; L-ALC = lighter alcohol-only; H-ALC = heavier alcohol-only; L-SAM = lighter alcohol combined with marijuana; H-SAM = heavier alcohol combined with marijuana. The covariates were included in analyses for both hypotheses; however, they are listed once since their values were the same in both models.
*
p < .01;
**
p < .0001