Measurement | Baseline | Follow-up I (8 months after baseline) | Follow-up II (20 months after baseline) | Follow-up III (32 months after baseline) |
---|---|---|---|---|
Demographic characteristics | * | * | * | * |
Alcohol: | * | * | * | * |
Drinking behavior | * | * | * | * |
Perceived parental rules | * | * | * | * |
Intention | * | * | * | * |
Global attitudes | * | * | * | * |
Pros and cons | * | * | * | * |
Social norm (approval) | * | * | * | * |
Modeling | * | * | * | * |
Self-efficacy | * | * | * | * |
Knowledge | * | * | * | * |
Tobacco: | * | * | * | * |
Smoking behavior | * | * | * | * |
Nicotine dependence | * | * | * | * |
Perceived parental rules | * | * | * | * |
Intention | * | * | * | * |
Global attitudes | * | * | * | * |
Pros and cons | * | * | * | * |
Social norm (approval) | * | * | * | * |
Modeling | * | * | * | * |
Self-efficacy | * | * | * | * |
Knowledge | * | * | * | * |
Marijuana: | * | * | * | * |
Marijuana using behavior | * | * | * | * |
Marijuana dependence | * | * | * | * |
Perceived parental rules | * | * | * | * |
Intention | * | * | * | * |
Global attitudes | * | * | * | * |
Pros and cons | * | * | * | * |
Social norm (approval) | * | * | * | * |
Modeling | * | * | * | * |
Self-efficacy | * | * | * | * |
Knowledge | * | * | * | * |
Other: | * | * | * | * |
Risk perception | * | * | * | * |
Popularity | * | * | * | * |
Likability | * | * | * | * |
Best friends | * | * | * | * |
Personality | * | * | * | * |
Pubertal development | * | * | * | * |