Table 2.
Results of the single mediator models; Project MYTRI, 2004–2006 (n=14,085).
| α Est. (SE) |
β Est. (SE) |
αβ Est. (SE) |
αβ 95% CI |
|
|---|---|---|---|---|
|
Program’s effect on the mediator |
Mediator’s effect on the outcome |
Estimate of the mediated effect | ||
| BEHAVIORS b | ||||
| Consistent mediators | ||||
| Knowledge of Health Effects a | 0.14 (0.01)* | −2.29 (0.42)* | −0.31 (0.06)* | −0.44, −0.19 |
| Reasons to Use a | 0.09 (0.01)* | −1.45 (0.18)* | −0.13 (0.02)* | −0.18, −0.09 |
| Reasons Not to Use a | 0.04 (0.01)* | −2.73 (0.43)* | −0.12 (0.04)* | −0.19, −0.04 |
| Advocacy Skills Self-Efficacy a | 0.04 (0.01)* | −1.72 (0.48)* | −0.06 (0.02)* | −0.12, −0.02 |
| Normative Beliefs a | 0.06 (0.01)* | −0.85 (0.11)* | −0.05 (0.01)* | −0.08, −0.02 |
| Inconsistent mediators | ||||
| Perceived Prevalence of Chewing a | −0.12 (0.01)* | −0.61 (0.12)* | 0.07 (0.02)* | 0.04, 0.10 |
| Perceived Prevalence of Smoking a | −0.12 (0.01)* | −1.82 (0.33)* | 0.22 (0.05)* | 0.14, 0.32 |
| Non-significant mediators | ||||
| Beliefs about Social Consequences a | 0.02 (0.01) | −2.61 (0.48)* | −0.05 (0.04) | −0.13, 0.01 |
| Refusal Skills Self-Efficacy a | −0.01 (0.01) | −1.33 (0.57)* | 0.02 (0.02) | −0.01, 0.06 |
| Support for Tobacco Control Policy a | 0.02 (0.01) | −0.97 (0.16)* | −0.01 (0.01) | −0.04, 0.01 |
| Knowledge of Tobacco Control Policy a | 0.15 (0.01)* | 0.07 (0.44) | 0.01 (0.07) | −0.12, 0.14 |
| Normative Expectations a | 0.00 (0.01) | −1.84 (0.31)* | −0.00 (0.03) | −0.05, 0.05 |
| INTENTIONS c | ||||
| Consistent mediators | ||||
| Knowledge of Health Effects a | 0.14 (0.01)* | −1.23 (0.42)* | −0.17 (0.06)* | −0.29, −0.05 |
| Beliefs about Social Consequences a | 0.03 (0.01)* | −0.54 (0.13)* | −0.02 (0.01)* | −0.03, 0.00 |
| Reasons to Use a | 0.08 (0.01)* | −0.86 (0.04)* | −0.07 (0.01)* | −0.09, −0.04 |
| Reasons Not to Use a | 0.05 (0.01)* | −0.38 (0.06)* | −0.02 (0.01)* | −0.03, −0.01 |
| Advocacy Skills Self-Efficacy a | 0.04 (0.01)* | −0.72 (0.27)* | −0.03 (0.01)* | −0.06, −0.01 |
| Normative Beliefs a | 0.05 (0.01)* | −0.82 (0.05)* | −0.04 (0.01)* | −0.06, −0.02 |
| Inconsistent mediators | ||||
| Perceived Prevalence of Chewing a | −0.14 (0.01)* | −0.42 (0.08)* | 0.06 (0.01)* | 0.04, 0.08 |
| Perceived Prevalence of Smoking a | −0.12 (0.01)* | −0.48 (0.10)* | 0.06 (0.01)* | 0.03, 0.09 |
| Non-significant mediators | ||||
| Refusal Skills Self-Efficacy a | −0.01 (0.01) | −0.21 (0.06)* | 0.00 (0.00) | 0.00, 0.01 |
| Support for Tobacco Control Policy a | 0.01 (0.01) | −1.01 (0.07)* | −0.01 (0.01) | −0.03, 0.02 |
| Knowledge of Tobacco Control Policy a | 0.15 (0.01)* | −0.15 (0.08) | −0.02 (0.01) | −0.05, 0.00 |
| Normative Expectations a | −0.01 (0.01) | −0.95 (0.07)* | 0.00 (0.01) | −0.02, 0.03 |