Table 2.

The statistical analysis between the various observer groups and the p-value (based on the Wilcoxon signed rank test after Bonferroni adjustment).

	RV-VV	RV-TCA	RV-VK	RV-VPB	VV-TCA	VV-VK	VV-VPB	VK-TCA	VPB-TCA	VPB-VK
Z	−.746	−3.158	−2.736	−3.223	−3.071	−3.080	−5.172	−.723	−.015	−.706
Asymp. Sig. (2-tailed)	.456	.002	.006	.001	.002	.002	.000	.470	.988	.480