Table 5.

Summaries of prospective regression analyses predicting time 2 problem drinking

	Time 2 Alcohol-related problems (N = 169)							Time 2 Heavy episodic drinking (N = 178)
	First entry in model			Final model				First entry in model			Final model
Time 1 predictor variables	B	SE B	β	B	SE B	β		B	SE B	β	B	SE B	β
Step 1, R squared change = .23***							R squared change = .32***
Time 1 problem drinking variable	0.52	0.07	0.48***	0.26	0.09	0.24**		0.64	0.07	0.56***	0.58	0.09	0.51***
Step 2, R squared change = .04**
Overall drinks per week	0.19	0.07	0.22**	0.22	0.08	0.25**			n/a			n/a
Step 3, R squared change = .00							R squared change = .01
Gender (male coded 1, female 2)	0	0.05	0.01	−0.04	0.05	−0.05		−0.03	0.03	−0.07	−0.04	0.03	−0.09
Step 4, R squared change = .02							R squared change = .01
Depression	0.07	0.07	0.07	0.02	0.07	0.02		−0.04	0.04	−0.07	−0.06	0.04	−0.10
Sensation seeking	−0.03	0.02	−0.14	−0.03	0.02	−0.14		0	0.01	0	0	0.01	−0.01
Step 5, R squared change = .05***							R squared change = .01
Impaired control	0.09	0.03	0.26***	0.09	0.03	0.27**		0.03	0.02	0.12	0.01	0.02	0.04
Step 6, R squared change = .01							R squared change = .04*
Euphoric/social disinhibition		n/a		0	0	−0.02			n/a		0.01	0	0.20**
Dysphoric disinhibition		n/a		0.13	0.12	0.08			n/a		0.09	0.07	0.08
Sexual disinhibition		n/a		−0.07	0.13	−0.04			n/a		−0.07	0.08	−0.07
	Model R squared = 0.34							Model R squared = 0.38

Note. B indicates the unstandardized regression coefficient and β indicates the standardized coefficient.

^*p ≤ .05,

^**p ≤ .01,

^***p ≤ .001