Table 2.

Unstandardized regression estimates of program effects at 6-year follow-up (n = 413)

	30-day substance use
Variable	Alcohol B (SE)	Heavy drinking B (SE)	Cigarettes B (SE)	Marijuana B (SE)	Refusal skills B (SE)	Peer use B (SE)	Alcohol consequences B (SE)
CDP vs. CD§	−0.53 (0.54)	−0.18 (0.24)	−2.50** (0.82)	−0.27 (0.86)	0.21 (0.20)	−0.01 (0.11)	−0.16 (0.13)
CDP and CD vs. control†	−1.31** (0.48)	−0.57** (0.21)	−1.68* (0.72)	−0.30 (0.76)	−0.38* (0.17)	−0.13 (0.09)	−0.26* (0.11)
Age	0.65** (0.33)	0.20* (0.09)	0.91** (0.30)	0.20 (0.31)	0.93 (0.07)	0.09 (0.04)	−0.01 (0.11)
Female	0.38 (0.66)	−0.29 (0.20)	0.61 (0.67)	−0.76 (0.70)	0.11 (0.16)	0.19 (0.09)	−0.05 (0.05)
Pretest scores	0.25 (0.63)	0.74** (0.28)	−0.48 (1.27)	−0.54 (1.43)	0.10 (0.09)	−0.10 (0.10)	—

Notes: CDP = CD-ROM and parent component arm; CD = CD-ROM only arm.

^§Contrast code = 0.5, -0.5, 0.0 for conditions CDP, CD, control, respectively;

^†contrast code = 1.0, 1.0, 0.0 for conditions CDP, CD, control, respectively.

^*p < .05;

^**p < .01.