Table 4.
Testing whether impulsivity mediates the gender effect on alcohol problems.
Testing steps in mediation model | B | SE B | β | p |
---|---|---|---|---|
Step 1 | ||||
Outcome: AlcProb | ||||
Predictor: Gender | -0.69 | .30 | -2.29 | .02 |
Step 2 | ||||
Outcome: BIST | ||||
Predictor: Gender | -0.58 | .14 | -4.09 | .000 |
Step 3 | ||||
Outcome: AlcProb | ||||
Mediator: BIST | 0.45 | .16 | 2.80 | .005 |
Predictor: Gender | -0.44 | .32 | -1.38 | .17 |
Note: AlcProb = Alcohol Problem status (i.e. MAST score > 2); BIST = Barrat Impulsiveness Scale Total score. Gender was dummy coded 0 = Men, 1 = Women. Testing Steps 1 and 3 used logistic regression and Testing Step 2 used linear regression.