Table 5.

Show the differences in mean rank scores in basic knowledge, applied knowledge (Trauma, Arthroplasty, Spine), attitude and interest between early (wave1) and late (wave2) respondents using the Mann–Whitney U test for independent samples (N = 128).

Domain	Grouping variable	N	Mean Rank	Mann–Whitney U	P value
	wave
Basic k.	1	78	64.36	1939	.955
	2	50	64.72
Attitude	1	78	63.46	1869	.688
	2	50	66.12
Interest	1	78	65.06	1906	.825
	2	50	63.62
Arthroplasty K.	1	78	66.29	1810.5	.451
	2	50	61.71
Trauma K.	1	78	66.22	1815.5	.483
	2	50	61.81
Spine K.	1	78	64.46	1947	.987
	2	50	64.56