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Table 9 Percent of students who gave a correct answer to program content questions.

From: The NARCONON™ drug education curriculum for high school students: A non-randomized, controlled prevention trial

  Control Drug Ed Significance Level df = 11
  N = 524 N = 419 N = 433 N = 388   
  Baseline 6-month follow-up Baseline 6-month follow-up F p valuea
1. Drugs affect your mind only while you are taking them. (answered false) 58.8% 68.7% 58.0% 68.3% 3.21 <0.001
2. Alcohol is not a drug. (answered false) 51.3% 54.9% 53.3% 70.9% 6.03 <0.001
3. Every drug really produces just one main effect and that is what you should be concerned about. (answered false) 62.2% 69.0% 56.4% 63.9% 3.77 <0.001
4. Drug abuse only means illegal drugs. (answered false) 79.0% 80.4% 76.7% 79.1% 4.24 <0.001
5. Because marijuana grows naturally, the chemicals it contains aren't really bad for your body. (answered false) 67.9% 74.2% 60.5% 68.8% 3.53 <0.001
6. One reason youth experiment with drugs is because they are advertised in movies, television, and magazines. (answered true) 57.6% 61.6% 47.6% 64.9% 4.70 <0.001
7. All drugs change the way your body works, whether you want them to or not. (answered true) 76.1% 76.4% 65.4% 74.5% 2.15 0.015
8. Once you take a drug, it will always have the same effect each time you take it. (answered false) 48.9% 57.3% 47.3% 56.4% 3.58 <0.001
9. Drugs cause your body to use up vitamins and minerals. (answered true) 36.3% 50.4% 33.0% 72.9% 8.79 <0.001
10. Drugs can cause blank spots in your memory. (answered true) 75.2% 80.4% 66.5% 79.6% 5.06 <0.001
11. Drugs can cause a person to be sure they are doing one thing when in actual fact they are doing something else. (answered true) 68.9% 73.3% 60.0% 67.5% 5.25 <0.001
12. Hallucinogens are not as bad as other drugs. (answered false) 50.6% 57.0% 42.0% 59.0% 2.90 <0.001
13. Alcohol ads are designed only for people over 21 years of age. (answered false) 51.7% 59.2% 49.9% 58.8% 7.35 <0.001
14. Drugs can change how you feel, after a while a person on drugs can become depressed and not caring. (answered true) 76.5% 79.5% 72.3% 75.8% 3.23 <0.001
15. Once you stop drugs, it's over – they have no further effect on your body or mind. (answered false) 76.1% 77.3% 68.4% 70.9% 2.60 0.003
16. Addiction only happens once you can't say no. (answered true) 31.9% 37.9% 26.1% 24.5% 2.95 0.001
17. Its okay if you just take drugs once in a while because the body cleans all the drug stuff out in a few days. (answered false) 66.4% 69.5% 63.0% 72.9% 3.53 <0.001
18. I know how to tell if I am getting good information about drugs. (answered true) 46.9% 62.1% 49.2% 63.4% 2.56 0.003
19. A person needs to have personal goals to be happy. (answered true) 60.1% 68.3% 52.7% 69.3% 3.28 <0.001
20. It is easy for me to communicate what I think or how I feel about something. (answered true) 63.4% 70.6% 56.8% 65.2% 1.34 ns
21. I know enough about drugs to make my own decisions. (answered true) 80.0% 84.2% 76.9% 81.7% 2.77 0.002
22. I can easily resist pressures to take drugs. (answered true) 72.3% 78.8% 70.0% 74.5% 2.77 0.002
23. I have resisted pressures to take drugs before. (answered true) 66.4% 69.2% 58.9% 68.3% .88 ns
24. In the future, I might use drugs. (answered false) 64.9% 65.9% 60.7% 60.8% 2.74 0.002
25. Drugs aren't really that bad. (answered false) 79.4% 81.6% 70.9% 75.0% 1.91 0.035
  1. aControlling for baseline differences by using an analysis of covariance with a Type III sums of squares