| Model | Unstandardized Coefficients | T | Sig. |
|
| ||
| B | Std. Error |
|
| ||||
| 1 | (Constant) | 88.712 | 2.279 | 32.612 | 0.000 |
|
|
| QT | 3.382 | 0.612 | −2.377 | 0.000 |
|
| |
| 2 | (Constant) | 81.136 | 3.154 | 21.565 | 0.000 |
|
|
| QT | 2.342 | 0.566 | −3.141 | 0.000 |
|
| |
| ET | 2.375 | 1.424 | 2.411 | 0.009 |
|
| |
| 3 | (Constant) | 65.555 | 9.229 | 6.871 | 0.000 |
|
|
| QT | −2.313 | 0.636 | −3.251 | 0.000 |
|
| |
| ET | 2.562 | 1.117 | 33..134 | 0.001 |
|
| |
| PT | 2.861 | 0.449 | 2.323 | 0.000 |
|
| |
| Model 1 | F = 15.178 | Model 2 | F = 8.412 | Model 3 | F = 7.437 | ||
|
| df = 1 |
| df = 2 |
| df = 3 | ||
|
| p = 0.000 |
| p = 0.000 |
| p = 0.000 | ||
|
| R2 = 0.043 |
| R2 = 0.089 |
| R2 = 0.100 | ||
|
| R2 Change = 0.35 |
| R2 Change = 0.46 |
| R2 Change = 0.19 | ||