Measure	Items	α	Sample Item	Scale
PrEP Knowledge	13	.90	“You should not use PrEP if you don’t know your HIV status.”	True/False/Don’t Know
PrEP Attitudes	5	.79	“Taking PrEP is safe.”	1=Strongly Disagree to 5=Strongly Agree
PrEP Stigma	5	.83	“People who take PrEP are promiscuous.”	1=Strongly Disagree to 5=Strongly Agree
PrEP Descriptive Norms	6	.93	“People in my community would consider taking PrEP.”	1=Strongly Disagree to 5=Strongly Agree
PrEP Subjective Norms	6	.94	“My friends would think it was responsible if I used PrEP.”	1=Strongly Disagree to 5=Strongly Agree
Efficacy	8	.87	“How difficult would it be for you to visit a doctor who can provide PrEP?”	1=Very Hard to Do to 4=Very Easy to Do
PrEP Intentions	3	.90	“During the next three months, I will get a prescription for PrEP.”	1=Definitely Will Not Do to 4=Definitely Will Do