| Model | Unstandardized Coefficients | T | Sig | Collinearity Statistics | |||
| B | Std. Error | Tolerance | VIF | ||||
| 1 | (Constant) | 0.013 | 0.133 | 0.096 | 0.923 |
|
|
| SF | 2.348 | 0.014 | 163.673 | 0.000 | 1.000 | 1.000 | |
| 2 | (Constant) | −0.859 | 0.077 | 11.102 | 0.000 |
|
|
| SF | 1.382 | 0.029 | 47.091 | 0.000 | 0.072 | 13.983 | |
| TF | 0.345 | 0.010 | 34.160 | 0.000 | 0.072 | 13.983 | |
| 3 | (Constant) | −0.717 | 0.083 | −8.629 | 0.000 |
|
|
| SF | 1.570 | 0.053 | 29.726 | 0.000 | 0.021 | 46.818 | |