Quantifying interpersonal contact in the United States during the spread of COVID-19: first results from the Berkeley Interpersonal Contact Study

Dennis Feehan; Ayesha Mahmud

Respondents were recruited using Lucid, an online panel provider. We obtained two samples: first, a quota sample that is intended to be representative of the United States; and, second, several smaller quota samples from specific cities: New York, the San Francisco Bay Area, Atlanta, Phoenix, and Boston. Except where noted, we pool results from these samples together in this first analysis. This first report focuses on crude results and, apart from quota sampling, these results have not yet been statistically adjusted to improve sample representativeness. We plan to produce additional reports as we continue to collect data to track interpersonal interaction over the coming months; we will post more frequent updates to the dashboard available at https://contact-survey.github.io/dashboard/. This project has been approved by the UC Berkeley IRB (Protocol 2020-03-13128).