Table 5.
Hierarchical multiple regression analysis to predict behavior first from self-efficacy and then from the theory of planned behavior variables (n=120)
| Predictor | R square | R square change | Adjusted R square | B | Beta | t | Sig |
|---|---|---|---|---|---|---|---|
| Step 1 | |||||||
| Self-efficacy | 0.183 | 0.183 | 0.176 | 5.544 | 0.428 | 5.148 | 0.0001 |
| Step 2 | |||||||
| Self-efficacy | 0.183 | 0.183 | 0.176 | 3.853 | 0.298 | 2.896 | 0.005 |
| Instrumental attitude | 0.213 | 0.030 | 0.200 | 2.623 | 0.217 | 2.110 | 0.037 |
| Affective attitude | 0.048 | 0.300 | 0.765 | ||||
| Subjective norm | 0.098 | 1.002 | 0.318 | ||||
| PBC | -0.060 | -0.435 | 0.664 | ||||
| Intention | 0.118 | 1.219 | 0.225 |
PBC=Perceived behavioral control; B: unstandarized coefficients; t: test statistic