| Model | Unstandardized Coefficients | t-statistic | Sig. | |
| Coefficient | S.D | |||
| (Constant) | 1.757 | 0.120 | 14.606 | 0.00 |
| The number of extracurricular activities practiced | 0.36 | 0.066 | 5.435 | 0.00 |
| Practice period | 0.008 | 0.002 | 4.057 | 0.00 |
| R = 0.666; R2 = 0.444; F = 29.107; P(F) = 0.00 | ||||