  The COVID19 pandemic spread across the world in late 2019 and early 2020. As
the pandemic spread, technologists joined forces with public health officials
to develop apps to support COVID19 response. Yet, for these technological
solutions to benefit public health, users must be willing to adopt these
apps.This paper details the potential inputs to a user's decision to adopt a
COVID19 contact-tracing app or other technology and empirically validates the
relevance of these inputs via both the literature and a
demographically-representative survey of 1,000 Americans.
