| MAC/E Scale | Spearman’s rank correlation coefficient | Level of Significance | Degree of Correlation |
| Precontemplation | |||
| Contemplation | |||
| Preparation | −0.3461 | p < 0.01 | Medium |
| Action | −0.3566 | p < 0.01 | Medium |
| Discrepancy | −0.5112 | p < 0.001 | High |
| Self-efficacy | −0.3427 | p < 0.01 | Medium |
| Reliability | 0.2642 | p < 0.05 | Low |