Table 1. Reliability parameters of the inline skating skill test and the smallest worthwhile change in performance time of 4 trials
Group n T1 (s)
mean (±SD)
T2-T1 (%)
95% CI
T3-T2 (%)
95% CI
T4-T3 (%)
95% CI
TEmean (s)
95% CI
CVmean (%)
95% CI
ICCmean
95% CI
SWC0.2(s)
mean
CL female 10 25.1 (1.8) 1.5 (-5.2–2.4) -1.7 (-5.8–2.6) 2.2 (0.0–4.5) .25 (.18–.47) 2.1 (1.4–3.9) .99 (.97–1.00) .39
CL male 6 21.6 (1.7) -.7 (-2.4–.9) -.4 (-2.4–1.7) .1 (-1.6–1.9) .21 (.15–.32) 1.6 (1.2–2.4) .97 (.92–0.99) .34
RL female 16 33.0 (8.7) -1.0 (-3.8–1.8) 1.4 (-1.6–4.6) .4 (-1.8–2.7) .10 (.08–.15) 2.7 (2.1–4.0) .99 (.98–1.00) 1.86
RL male 10 26.0 (3.1) .2 (-2.9–3.4) -.5 (-3.1–2.2) -1.5 (-3.9–1.0) .17 (.13–.30) 1.9 (1.4–3.3) .99 (.96–1.00) .55
CL = Competitive level; RL = Recreational level; T1, T2 = Trial 1, Trial 2; T2-T1 = Change in the mean between Trial 2 and Trial 1; TEmean = Mean typical error of three consecutive pairs of the test; CVmean = Mean coefficients of variation of three consecutive pairs of the test; ICCmean = Mean intra-class correlation coefficients of three consecutive pairs of the test; 95% CI = 95% Confidence interval; SWC0.2 = Smallest worthwhile change given by standard deviation × 0.2