Table 1.
Reliability outcomes of the Dutch Technical- Tactical Tennis Test (D4T) in youth tennis players (n=10
| Mean ± SD | ICC | ICC 95% Cl | Absolute reliability | Absolute reliability 95% CI | SEM | SDD | ||
|---|---|---|---|---|---|---|---|---|
| T1 | T2 | |||||||
| VA-index | 17,92 ±3.09 | 17.63 ±4.31 | .78* | .19-.95 | ,29 | -2.06 - 2.64 | 2.32 | 6.44 |
| Velocity (kph) | 95,91 ± 5,43 | 9352 ±586 | .87** | .51 - .97 | 2,40* | .09-4.71 | 2.28 | 6.33 |
| Accuracy (points) | 1.75 + .29 | 1.80 ±.43 | .73” | -.02 - .93 | -.05 | -.30 - .20 | .25 | .69 |
CI: Confidence interval; ICC: intra-dass correlation coefficient (model: one-way random); SDD: smallest detectable difference; SEM: standard error of measurement; T1: measurement 1;T2: measurement 2;
*
p<.05
**
p<.005