Table 4 Comparison of athletes’ nutritional knowledge, attitude, and performance with the optimal level
| Â | The optimal level | t-value | Degrees of freedom | P-value | Mean differences | 95% confidence interval for mean differences | Effect size* | |
|---|---|---|---|---|---|---|---|---|
Lower bound | Upper bound | |||||||
Knowledge | 84 | 0.236 | 319 | 0.001 | -4.406 | -3.634 | -5.177 | 0.628 |
Attitude | 26 | 8.954 | 319 | 0.001 | -20.653 | -2.070 | -3.236 | 1 |
Performance | 24 | -11.471 | 319 | 0.001 | -2.212 | -1.833 | -2.592 | 1.025 |