Table 2.

Visual assessment scales

	A Novices (n = 10)	B Intermediates (n = 10)	C Experts (n = 10)	AB P value	BC P value	AC P value	ABC P value
Checklist scores (0–16)	12 (9–13)	12.5 (12–14)	12 (12–13)	NP	NP	NP	0.095
GRS scores (7–35)	13 (12–17.5)	23.5 (21–28)	34.75 (34–35)	0.15	0.02	< 0.001	< 0.001

GRS Global Rating Scale

NP Not performed (multiple comparisons were not performed when the overall test does not show significant differences across samples)

Values are expressed in median and interquartile range (Q1–Q3)

^ABC p value: P values obtained when comparing 3 groups with Kruskal Wallis test

^AB p value, ^BC p value, and ^AC p value: P values obtained when comparing columns with Dunn’s post-hoc test