Table 2.

Proportion of correct responses on the Participant Comprehension Survey by assigned study arm (N=50).

Number	Question	Participants with correct answers, n (%)		VICa vs paper, risk ratio (95% CI)
		VIC arm (n=25)	Paper arm (n=25)
1	Why did we ask you to participate in this study?	18 (72)	20 (80)	0.90 (0.66-1.23)
2	Which of the following are benefits of this study?	18 (72)	17 (68)	1.06 (0.74-1.52)
3	Which of the following procedures is part of the study?	25 (100)	24 (96)	1.04 (0.96-1.13)
4	Which of the following is true if you choose to participate?	23 (92)	24 (96)	0.96 (0.83-1.10)
5	Which of the following is an expected risk from participating in the study?	22 (88)	20 (80)	1.10 (0.86-1.40)
6	While you are in this research study, what will happen to your personal health information?	24 (96)	19 (76)	1.26 (1.00-1.60)
7	Which of the following statement is true about your participation in the study?	20 (80)	18 (72)	1.11 (0.81-1.52)
8	How can you withdraw from this study?	24 (96)	20 (80)	1.20 (0.97-1.48)
9	Who can you call if you have questions about your rights as a participant in this study?	18 (72)	16 (64)	1.13 (0.77-1.65)
10	Your driver’s license number will be collected for purposes of this study	25 (100)	25 (100)	1.00 (1.00-1.00)
11	To participate in this study, you need to provide blood sample	24 (96)	25 (100)	0.96 (0.89-1.04)
12	If you are injured while participating in this study, you or your insurance carrier will be expected to pay the costs of this treatment	9 (36)	12 (48)	1.23 (0.76-1.99)
13	If you participate in the procedures for this study, you will be paid for your time	25 (100)	25 (100)	1.00 (1.00-1.00)

^aVIC: Virtual Multimedia Interactive Informed Consent.