Table 3.
Multilevel model results for short-term effects
| Alcohol use | Alcohol Attitudes | PBC | AEQ-A | |
|---|---|---|---|---|
| Fixed parameters | ||||
| Intercept | 0.45 (0.07)* | 2.49 (0.07)* | 2.24 (0.05)* | 2.59 (0.06)* |
| Group | −0.08 (0.12) | 0.17 (0.11) | −0.07 (0.08) | 0.32 (0.09) |
| Time | 0.21 (0.09)* | −0.26 (0.05)* | −0.14 (0.05)* | −0.16 (0.05)* |
| Group x Time | −0.00 (0.14) | −0.14 (0.08) | −0.07 (0.08) | −0.22 (0.08)* |
| Random parameters | ||||
| Level 1 Within subjects | 4.19 (0.11)* | 1.05 (0.03)* | 1.09 (0.03)* | 0.99 (0.03)* |
| Level 2 Between subjects | 0.86 (0.09)* | 1.18 (0.06)* | 0.55 (0.04)* | 0.88 (0.05)* |
| Level 3 Between classes | 0.04 (0.03) | 0.19 (0.04)* | 0.03 (0.01)* | 0.11 (0.03)* |
Note. *p < .05. Parameter estimates and standard errors (in parentheses). Intervention group = 1, Control group = 0. Time measured after four months.