Skip to main content

Table 2 List experiments in the trial

From: Animated, video entertainment-education to improve vaccine confidence globally during the COVID-19 pandemic: an online randomized controlled experiment with 24,000 participants

List 1: COVID vaccine—self uptake
1. Brush my teeth at least twice daily
2. Begin learning a new language
3. Smoke cigarettes or vape
4. Get vaccinated against COVID-19 when the vaccine is available for me*
List 2: COVID vaccine—recommendation
1. Recommend a show or movie to my friend
2. Encourage a friend to seek routine dental care
3. Allow a friend to drive home even though I think they may have had too much to drink
4. Encourage a friend or family member to get vaccinated against COVID-19 when the vaccine is available for them*
List 3: routine vaccine—self uptake
1. Wash my hands before eating
2. Take up a new sport
3. Have unprotected sex with someone who is not my long-term partner
4. Get a routine vaccine (for example, flu vaccine, tetanus booster shots, hepatitis B vaccine) if the doctor recommends it*
List 4: routine vaccine—recommendation
1. Try to get my family to eat more fruits and vegetables
2. Perform a routine check of the batteries in our smoke detectors
3. Encourage a friend to get a tattoo or body piercing
4. Encourage a friend or family member to get a routine vaccine (for example, flu vaccine, tetanus booster shots, hepatitis B vaccine) if the doctor recommends it*
  1. Note: In each trial arm, both groups will receive four lists. For each list, the control group will get the first three items only; the treatment group will receive the three items and the fourth sensitive item, indicated by an asterisk (*). Each list experiment will be preceded by the question: “In the coming 3 months, how many of the following things are you likely to do? I do not need to know which of these things you are likely to do, just how many.”