. 2016 Dec 19;2(2):e17. doi: 10.2196/mededu.6442

Table 2.

Medians and interquartile ranges in the knowledge total scores and for each category of those who completed the tutorial.

Category	Pretest, median (IQR^a)	Posttest, median (IQR)	P value^b
All (out of 10)	4 (3-5)	7 (6-8)	<.001
Diagnosis (out of 4)	2 (1-2)	3 (2-4)	<.001
Treatment (out of 3)	2 (1-2)	3 (2-3)	<.001
Shared decision making (out of 3)	1 (0-1)	1 (1-1)	<.001

^aIQR: interquartile range.

^bDifference assessed with Wilcoxon signed-rank test. P values do not represent the median difference but represent improvement in the mean rank of the difference in scores between the pre- and posttests.