Table 1.

Postparticipation survey overview.

Domain and subdomain		Goals within the domain/subdomain
Appropriateness		To measure participant perceptions about the appropriateness of Bluetooth contact tracing and the use of certain types of data (Bluetooth, GPS, Wi-Fi, etc)
Usability
	Ease of use	To measure the ease with which participants install, learn to use, and use the apps
	Interface and satisfaction	To measure participant experiences and satisfaction with the design and interface of the app
Acceptability
	Usefulness	To evaluate participant beliefs surrounding the usefulness of the tracing technology
	Coherence	To evaluate participants’ understanding of how data are collected and protected by the technology
	Social influence	To measure the presence of social influence from peers or supervisors regarding uptake of technology-assisted tracing
	Setting	To measure perceptions about available assistance for the use of the apps and/or devices and individual agency in uptake
Adherence		To measure adherence and participant preferences with regard to carrying the study devices