Use of Behavioral Economics in Repeat SARS-CoV-2 (COVID-19) Antibody Testing in Disadvantaged Communities

"Family risk framing may engender concern for loved ones. It may also make it easier to mentally simulate family burdens with COVID-19 such as knowing how several people in the family becoming sick could adversely affect the lives of everyone in the family. Households randomized to family risk messaging will receive the following message: Antibody testing will help you understand your family's risk of getting COVID-19."

"Personal risk framing may engender concern for oneself. Households randomized to personal risk messaging will receive the following message: Antibody testing will help you understand your risk of getting COVID-19."

Household members are offered a baseline incentive with a 90% (9 in 10) chance of $60 and receive insurance on winning the baseline incentive for repeat antibody testing.

Household members are offered a baseline incentive with a 90% (9 in 10) chance of $60 and receive a bonus lottery incentive with a 4 small (1 in 25) chance of winning $150 for repeat antibody testing.