| Model | Unstandardised Coefficients | Standardised Coefficients | R square change | t | Sig. | ||
| B | Std. Error | Beta |
| ||||
|
| (Constant) | 219.573 | 10.916 |
|
| 20.114 | 0.000 |
| Structured | −0.981 | 0.363 | 0.141 | 0.020 | −2.702 | 0.007 | |