Table 3.

Overview of the 4 exposure intervention groups that were exposed to the medical topic of appendicitis as well as their relative test scores (pre- and posttest) and average knowledge increase.

Intervention group (appendicitis)	Pretest score, mean (SD)	Posttest score, mean (SD)	Knowledge acquisition, mean (SD)
Virtual patient	718 (106.7)	800 (128.17)	81.25 (106.7)
Textbook	735 (146.3)	821.43 (128.64)	85.71 (85.22)
Preselected e-learning materials	750 (46.29)	887.5 (74.4)	137.5 (87.63)
Self-guided internet materials	735 (112.6)	850 (75.59)	112.5 (99.1)