Table 6.
Area under the curve in ROC analyses. (Higher number indicates better prediction.)
| Alcohol | Cigarettes | Marijuana | |
|---|---|---|---|
| Intentions | 0.929 | 0.913 | 0.940 |
| Values | 0.900 | 0.879 | 0.937 |
| Normative Beliefs | 0.862 | 0.831 | 0.889 |
| Refusal Skill | 0.856 | 0.841 | 0.891 |
| Beliefs Positive | 0.836 | 0.810 | 0.882 |
| Access/Availability | 0.830 | 0.812 | 0.847 |
| Beliefs Negative | 0.759 | 0.722 | 0.807 |
| Decision Skill | 0.731 | 0.735 | 0.748 |
| Self-Esteem | 0.712 | 0.705 | 0.727 |
| Age / Gender only | 0.686 | 0.653 | 0.690 |
Note. Models are additive with Age / Gender as a base model.