A valid and reliable test of technical skill for vision impaired football

Figures & data

Figure 1. Total Time for individuals and group across (A) All Trials Mean (B) Fastest Two Mean and (C) Fastest Mean.

Figure 2. Mean and Individual Total Times for all participants across the three trials in each of the two visits.

Figure 3. Bland–Altman plots showing Bias and 95% limits of agreement for the three possible measures of time for each visit for All Trials, Fastest Two and Fastest.

Table 1. Trial-Trial reliability for Total Time (s). Pearson’s (r) correlations, 95% confidence intervals (CI), and significance values (p). The Bland-Altman analysis shows Bias ± SD and 95% limits of agreement (LoA) between individual trials. Significant relationships displayed in bold

				Visit 1			Visit 2
				Trial 1	Trial 2	Trial 3	Trial 1	Trial 2
Visit 1	Trial 2		r (95% CI)	.54 (.15 – .84)
			P	.003
			Bias ± SD	2.04 ± 4.20
			95% LoA	−6.18–10.27
	Trial 3		r (95% CI)	.49 (.09 – .78)	.37 (−.04 – .76)
			p	.008	.04
			Bias ± SD	4.50 ± 4.51	2.46 ± 5.16
			95% LoA	−4.34–13.34	−7.65–12.57
Visit 2	Trial 1		r (95% CI)	.33 (−.08 – .75)	.42 (.02 – .89)	.30 (−.13 – .82)
			p	.05	.02	.08
			Bias ± SD	2.17 ± 4.81	0.13 ± 4.70	−2.33 ± 5.25
			95% LoA	−7.27–11.60	−9.09–9.34	−12.62–7.95
	Trial 2		r (95% CI)	.31 (−.10 – .64)	.53 (.15 − .86)	.41 (.01 – .81)	.63 (.25 – .86)
			p	.07	.004	.02	< .001
			Bias ± SD	3.58 ± 5.26	1.54 ± 4.48	−0.92 ± 5.12	1.42 ± 3.87
			95% LoA	−6.72–13.89	−7.24–10.33	−10.95–9.11	−6.16–8.96
	Trial 3		r (95% CI)	.37 (−.03 – .55)	.50 (.09 – .67)	.68 (.28 – .79)	.26 (−.12 – .48)	.52 (.12 – .72)
			p	.04	.01	< .001	.11	.04
			Bias ± SD	3.67 ± 5.86	1.625 ± 5.36	−.83 ± 4.44	1.50 ± 6.30	.08 ± 5.33
			95% LoA	−7.81–15.15	−8.87–12.12	−9.54 − 7.87	−10.86–13.86	−10.37–10.53