Table 2.
Regression Analyses Testing for Mediation: (1) Effect of Social Anxiety on Alcohol and Cannabis Problems, (2) Effect of Social Anxiety on Distress Tolerance, (3) Effect of Distress Intolerance on Alcohol and Cannabis Problems, (4) Effect of Social Anxiety on Alcohol and Cannabis Problems after Controlling for Distress Tolerance
| Dependent Variable | Independent Variable(s) | β | F |
|---|---|---|---|
| Alcohol Model | |||
| Alcohol-Related Problems | 1. Depression | .27 | 19.80** |
| Distress Tolerance | 2. Depression | -.54 | 79.23** |
| Alcohol-Related Problems | 3. Distress Tolerance | -.31 | 20.99** |
| Alcohol-Related Problems | 4. Depression
Distress Tolerance |
.06
-.32 |
.54
21.55** |
| Cannabis Model | |||
| Cannabis -Related Problems | 1. Depression | .26 | 18.42** |
| Distress Tolerance | 2. Depression | -.54 | 79.23** |
| Cannabis -Related Problems | 3. Distress Intolerance | -.18 | 6.87** |
| Cannabis -Related Problems | 4. Depression
Distress Tolerance |
.12
-.19 |
2.05
6.99** |
Note. Depression was measured using the Beck Depression Inventory-II (BDI-II), alcohol-related problems were measured using the Rutgers Alcohol Problems Index (RAPI), cannabis-related problems were measured with the Marijuana Problems Scale (MPS), and distress tolerance was measure using the Distress Tolerance Scale (DTS). β = standardized beta weight provided for multiple regression. Depression was separately regressed on each dependent variable in steps (1) and (2). Depression and distress were simultaneously regressed for each dependent variable in step (4).
*p < .05
p < .01