Table 4.

Dosage Model at 12-Month Follow Up for Primary Alcohol Use Outcomes Regarding the Past Six Months

	Alcohol use (N=282)			Drinking frequency (N=265)				Drinking quantity (N=278)				Drunkenness (N=280)				Binge drinking (N=283)
	b	SE	eβ (Odds ratio)	b	SE	β	t	b	SE	β	t	b	SE	β	t	b	SE	β	t
Dosagea	−.55	.32	.58†	−1.99	1.32	−.19	−1.51	−.45	.16	−.30	−2.84**	−.26	.13	−.21	−2.00*	−.07	.06	−.13	−1.13
Condition	−.71	.54	.49	−2.54	2.34	−.13	−1.08	−.72	.28	−.27	−2.55*	−.27	.23	−.12	−1.18	−.05	.11	−.05	−.48
Baseline	1.85	.31	6.37***	.31	.10	.19	3.01**	.44	.05	.44	8.13***	.69	.07	.48	9.23***	.41	.06	.38	6.74***
Teen gender	−.23	.30	.80	−.75	1.17	−.04	−.64	.01	.14	.01	.10	.00	.12	.00	−.03	.03	.06	.03	.60
Teen age	.05	.31	1.05	.24	1.19	.01	.20	−.08	.15	−.03	−.54	.00	.12	.00	.00	.04	.06	.04	.65
Teen White	.17	.34	1.19	.53	1.27	.03	.41	−.11	.16	−.04	−.69	.19	.13	.08	1.52	.03	.06	.03	.47
Inverse Mills Ratio	2.65	4.43	14.21	21.19	17.29	.08	1.23	1.98	2.14	.05	.92	1.79	1.74	.05	1.03	−.06	.85	.00	−.07

Note. For the condition variable, 1 = control, 0 = experimental condition.

^aDosage effect sizes (Cohen’s d): alcohol use d = −.30, frequency d = −.19, quantity d = −.35, drunkenness d = −.24, binge drinking d = −.14

^†p < .10

^*p < .05

^**p < .01

^***p < .001