Table 1.

Comparison of variables between groups

Variables	Number	Intraoperative visibility, (IQR)	Stone retropulsion, (IQR)	Stone quality, g (IQR)
Student 1	10	1.00 (0.00–1.00)	0.50 (0.00–1.00)	0.09240 (0.090375–0.093425)
Student 2	10	0.00 (0.00–1.00)	0.00 (0.00–1.00)	0.09140 (0.090975–0.092875)
Student 3	10	0.50 (0.00–1.00)	1.00 (0.75–1.00)	0.09195 (0.090375–0.095450)
Student 4	10	1.00 (0.00–1.00)	0.00 (0.00–1.00)	0.09260 (0.092175–0.093800)
Student 5	10	0.00 (0.00–1.00)	0.00 (0.00–1.00)	0.09155 (0.090878–0.095900)
Student 6	10	0.00 (0.00–0.25)	1.00 (0.00–1.00)	0.09205 (0.090750–0.092325)
Student 7	10	1.00 (0.00–1.00)	0.00 (0.00–1.00)	0.09230 (0.090750–0.093375)
Student 8	10	0.00 (0.00–1.00)	0.00 (0.00–1.00)	0.09315 (0.091000–0.093875)
Student 9	10	0.00 (0.00–1.00)	0.00 (0.00–1.00)	0.09175 (0.090775–0.093250)
Surgeon 1	10	0.00 (0.00–1.00)	0.00 (0.00–0.00)	0.09230 (0.090975–0.096150)
Surgeon 2	10	0.00 (0.00–1.00)	0.00 (0.00–1.00)	0.09270 (0.091200–0.093250)
P		0.086	0.064	0.844