Table IV.

Mediation of effects of stress on hazardous drinking by self-reported, choice, and response impulsivity.

	Effect of IV on M (a)	Effect of M on DV (b)	Total effect (c)	Direct effect (c′)	Indirect effect (a × b) (95% CI)
Self-reported impulsivity—BIS-11
IV
CAI total	0.57*	0.05*	0.08*	0.05*	0.03* (0.01–0.05)
Trauma	0.80 *	0.05*	0.10*	0.06	0.04* (0.02–0.08)
Major life events	1.60*	0.06*	0.07	−0.02	0.10* (0.04–0.19)
Recent life events	1.09*	0.05*	0.20*	0.16*	0.06* (0.02–0.11)
Chronic stressors	0.46*	0.06*	0.05*	0.03	0.03* (0.01–0.05)
Behavioral choice impulsivity—EDT
IV
CAI total	−0.001	0.47	0.07*	0.07*	−0.001 (−0.01 to 0.002)
Trauma	−0.003	0.59	0.10*	0.10	−0.002 (−0.02 to 0.003)
Major life events	−0.002	0.38	0.06	0.07	−0.001 (−0.03 to 0.01)
Recent life events	0.004	0.14	0.20*	0.20*	0.001 (−0.008 to 0.02)
Chronic stressors	0.003	0.13	0.05*	0.05*	0.001 (−0.01 to 0.008)
Response impulsivity—GNG
IV
CAI total	−0.15	0.02	0.08*	0.08*	−0.002 (−0.02 to 0.002)
Trauma	−0.24	0.01	0.10*	0.10*	−0.01 (−0.05 to 0.01)
Major life events	−0.78	0.01	0.07	0.08	−0.008 (−0.05 to 0.01)
Recent life events	−0.07	0.01	0.20*	0.20*	−0.001 (−0.02 to 0.006)
Chronic stressors	−0.08	0.01	0.05*	0.05	−0.001 (−0.009 to 0.002)

Notes: IV = independent variable (i.e. CAI total, trauma, major life events, recent life events, chronic stressors); M = mediator (i.e. self-reported impulsivity, choice impulsivity, response impulsivity); DV = dependent variable (AUDIT). The total effect is the effect of the IV on the DV without including the mediators in the model. The direct effect is the effect of the IV on the DV, controlling for the effects of the mediators. The indirect effect is the effect of the IV on the DV via the mediator.

^*Denotes significance at p < 0.05.