Table 4.

Homogeneity of outcome variables (N = 45).

Variables	Exp. (n = 23)	Cont. (n = 22)	t	p
	Mean ± SD
Alcohol-related knowledge	9.47 ± 3.14	13.90 ± 2.05	3.53	0.018
Alcohol expectancy	10.13 ± 3.26	10.09 ± 2.92	−0.04	0.966
Drinking refusal self-efficacy	22.61 ± 8.47	22.86 ± 6.90	0.11	0.913
Abstinence intention	14.30 ± 3.81	14.05 ± 4.30	−0.21	0.832