| Model |
| Unstandardized Coefficients | T | Sig. | |
| B | Std. Error | ||||
| 1 | (Constant) | 375.185 | 117.553 | 3.192 | .015 |
| DD | .098 | .074 | 1.329 | .226 | |
| ED | −.012 | .067 | −.173 | .867 | |
| TD | .002 | .073 | .024 | .982 | |