Pre-intervention survey items
After consenting, participants provided demographic information (age, gender, education, and state of residence). They were asked to respond to screening items about their COVID-19 vaccination status (‘Have you received a first/second/third dose of a COVID-19 vaccine?’, response options = yes/no). Participants were asked to indicate their hesitancy towards COVID-19 vaccines with a single item (‘How much do you agree with the following statement: “I feel hesitant about COVID-19 vaccines”‘, response options were on a 5-point scale from strongly disagree to strongly agree) informed by previous vaccination research [