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. 2023 Jul 15;88:217–228. doi: 10.5114/jhk/167465

Table 2.

Mean difference and consistency of measurement for change-of-direction speed time.

Trial 1 Mean±SD Trial 2 Mean±SD p-value* ES ES rating Mean difference (95%CI)
Timing gates 18.65 ± 1.4 18.64 ± 1.1 0.98 0.25 Small 0.00 (−0.66 to 0.68)
CODTimer app 18.70 ± 1.4 18.64 ± 1.1 0.84 0.21 Small 0.06 (−0.60 to 0.73)
Seconds Count app 18.71 ± 1.4 18.64 ± 1.1 0.84 0.21 Small 0.06 (−0.60 to 0.73)
StopwatchCamera app 18.73 ± 1.3 18.79 ± 1.1 0.10 0.21 Small −0.06 (−0.71 to 0.59)
Analog Stopwatch 1 18.72 ± 1.3 18.76 ± 1.2 0.91 0.23 Small −0.03 (−0.71 to 0.64)
Analog Stopwatch 2 18.76 ± 1.2 18.77 ± 1.4 0.96 0.24 Small −0.01 (−0.72 to 0.68)

SD: standard deviation; *: paired sample t-test; ES: effect size (Cohen’s d); CI: confidence interval.