Table S1.

Evaluation of teaching performance

Group	Instructor	Mean rank of evaluation item
		1	2	3	4	5	6	7
Solo	Clinician X	83.09	98.20	99.73	87.23	88.48	97.64	84.59
	Clinician Y	91.21	79.39	83.04	92.79	95.07	92.29	98.05
	Clinician Z	91.21	79.39	83.04	92.79	95.07	92.29	98.05
	Scientist A	114.34	118.54	121.50	115.39	120.73	120.55	111.54
	Scientist B	120.66	117.84	110.08	123.21	121.13	106.52	117.84
Co	Co-teacher A	104.69	105.61	104.19	101.34	96.26	106.15	105.23
	Co-teacher W	112.68	118.50	117.03	105.95	103.03	104.68	103.79
MW	Co vs. Solo	4080.50	3871.50	3961.00	4393.00	4225.00	4283.50	4339.5
	Three groups	11.50*b	14.63*b,c	10.08*b	10.53*b	9.96*b	4.61	5.70
	Overall	12.50	17.69**	13.31**	11.20	10.49	5.83	7.13

Notes: MW, Mann–Whitney U-test for co-teaching vs. solo-teaching comparison. χ² =Kruskal–Wallis test for overall comparisons. Post hoc Mann–Whitney U-test with Bonferroni correction was conducted revealing that no instructor-by-instructor comparisons were significantly different.

^*p<0.05.

^**p<0.05.

^aPost hoc: scientist vs. co-teaching comparison, adjusted p<0.05 in pair-wise MW.

^bPost hoc: scientist vs. clinician comparison, adjusted p<0.05 in pair-wise MW.

^cPost hoc: clinician vs. co-teaching comparison, adjusted p<0.05 in pair-wise MW.