Table 2. Descriptive statistics for the youth outcome variables by condition at three time points.

		Pretest		Posttest		Follow-up
		Intervention	Control	Intervention	Control	Intervention	Control
Outcome	Respondent	M (SD)	M (SD)	M (SD)	M (SD)	M (SD)	M (SD)
Substance use behaviors	Child	1.18 (.62)	1.00 (.00)	1.03 (.15)	1.04 (.20)	1.01 (.05)	1.04 (.13)
Willingness to use substances	Child	1.05 (.21)	1.02 (.08)	1.06 (.21)	1.00 (.00)	1.05 (.24)	1.03 (.09)
Parent-child communication
Alcohol	Parent	2.34 (.82)	2.56 (.80)	2.46 (.83)	2.88 (.87)	2.34 (.90)	2.78 (.93)
Tobacco	Parent	2.13 (.83)	2.41 (.68)	2.19 (.81)	2.36 (.91)	2.01 (.68)	2.43 (.92)
Deconstruction skills
Alcohol	Parent	6.17 (1.90)	6.39 (2.00)	6.92 (1.29)	6.11 (1.76)	6.44 (1.50)	5.79 (1.67)
	Child	4.64 (1.92)	4.61 (1.89)	6.36 (2.23)	5.04 (1.99)	6.17 (2.43)	6.29 (2.07)
Tobacco	Parent	5.44 (1.76)	5.39 (1.57)	5.92 (1.35)	5.48 (2.08)	6.33 (1.33)	5.63 (1.44)
	Child	4.47 (2.31)	4.78 (2.09)	6.56 (2.27)	5.08 (2.49)	6.06 (2.73)	6.25 (2.69)