Inclusion Criteria:  Are 21 years of age or older. Have not participated in the cognitive interview. Have not yet received a COVID vaccine. Are registered with MTurk in the United States. Have completed >= 5,000 HIITs within the MTurk system Have a HIIT approval rating of >= 97% Rate their agreement with the following statement as less than or equal to 50 out of 100: "To what extent do you agree with the following: "The FDA only authorizes COVID vaccines that are safe and effective."  Exclusion Criteria:  Are younger than 21 years of age Participated in the cognitive interviews Have already received a COVID vaccine. Are not registered with MTurk in the US Have completed < 5,000 HIITS Have a HIIT approval rating of <97% Rate their agreement with the following statement as greater than 50 out of 100: "To what extent do you agree with the following: "The FDA only authorizes COVID vaccines that are safe and effective."