Table 6

Decisions regarding drug Use: Percent of students in each group who gave a "drug free" answer.


Control
Drug Ed
Significance Level

Baseline N = 524
6-month follow-up N = 418
Baseline N = 434
6-month follow-up N = 390
p valuea

D1 It is clear to my friends that I am committed to living a drug-free life. (percent answering "True")
66.2%
67.5%
60.4%
69.7%
0.048
D2 I have made a final decision to stay away from marijuana. (percent answering "True")
75.4%
76.8%
71.9%
76.2%
0.108
D3 I have decided that I will smoke cigarettes. (percent answering "False")
77.7%
77.5%
77.0%
80.8%
0.008
D4 I plan to get drunk sometime in the next year. (percent answering "False")
52.7%
51.7%
55.1%
61.3%
0.003

a Controlling for baseline differences by using an analysis of covariance with a Type III sums of squares

Lennox and Cecchini Substance Abuse Treatment, Prevention, and Policy 2008 3:8   doi:10.1186/1747-597X-3-8

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