| Model | Unstandardized Coefficients | t statistic | Sig. | |
| Coefficient | S.D | |||
| (Constant) | 1.628 | 0.146 | 11.136 | 0.00 |
| The number of extracurricular activities practiced | 0.367 | 0.08 | 3.694 | 0.00 |
| Practice duration | 0.009 | 0.002 | 4.566 | 0.00 |
| R2 = 0.375; F = 21.9; P(F) = 0.00 | ||||