Table 2.
Descriptive statistics (mean ± standard deviation) for basketball shooting accuracy (in %), QE time (ms), duration (ms) and the number of fixations according to distance from the basket among under-16 (n = 10; 500 shots) and professional players (n = 10; 500 shots); results of t-test and effect sizes.
| Yi: | X: independent variable (age groups) | t-test | Magnitude effect | ||||
|---|---|---|---|---|---|---|---|
| Dependent variable (unit) | Distance | Under-16 | Professional | t-value | p | d | (qualitative) |
| Shooting accuracy (%) | Long | 33.6 ± 13.6 | 58.8 ± 9.8 | 4.750 | 0.001 | 2.12 | (very large) |
| Middle | 52.0 ± 10.5 | 69.2 ± 16.3 | 2.800 | 0.012 | 1.25 | (large) | |
| QE time (ms) | Long | 551 ± 230 | 600 ± 249 | 2.321 | 0.021 | 0.215 | (small) |
| Middle | 504 ± 238 | 572 ± 233 | 3.258 | 0.001 | 0.304 | (small) | |
| Fixations: total duration (ms) | Long | 606 ± 195 | 663 ± 243 | 2.932 | 0.004 | 0.273 | (small) |
| Middle | 564 ± 221 | 663 ± 245 | 4.767 | 0.001 | 0.447 | (small) | |
| Fixations (number) | Long | 2.11 ± 0.93 | 1.87±0.74 | 3.197 | 0.001 | 0.301 | (small) |
| Middle | 1.88 ± 0.85 | 1.99 ± 0.75 | 0.833 | 0.405 | 0.145 | (trivial) | |
| Last (ms) | Long | 363 ± 229 | 458 ± 265 | 4.301 | 0.001 | 0.404 | (small) |
| Middle | 372 ± 243 | 454 ± 258 | 3.656 | 0.001 | 0.345 | (small) | |