TABLE 4.

Attentional performance on CVAT – assistant referees before and after the FIFA-test.

	Before			After			Index
Parameter	Mean ± SEM	Min	Max	Mean ± SEM	Min	Max	Mean ± SEM
%OE	0.73 ± 0.25	0	3	2.47 ± 0.59	0	6	1.80 ± 0.24 ∗p < 0.01
%CE	3.27 ± 0.53	0	8	3.07 ± 0.34	1	6	−5.12 ± 4.02 (NS)
RT (ms)	391.20 ± 13.62	316	503	407.20 ± 18.52	310	596	1.67 ± 1.44 (NS)
VRT (ms)	77.40 ± 7.96	36	158	101.87 ± 16.98	37	281	8.89 ± 4.14 ∗p < 0.05

CVAT, Continuous Visual Attention Test; SEM, standard error of the mean; %OE, percentage of omission errors; %CE, percentage of commission errors; RT, reaction time; VRT, variability of reaction time. NS, p-value not significant; Min, minimum value; Max, maximum value; Index = (T2 − T1/T1 + T2) ^∗ 100, where T1 = pre FIFA-Test performance and T2 = post FIFA-Test performance.