Government trust (adapted from acceptance of physician authority, [26]; p. 384)	Completely disagree			Completely agree
1. Everyone should follow official recommendations.	1	2	3	4	5
2. Government officials know best about what is good for citizens in managing COVID-19.	1	2	3	4	5
3. Managing COVID-19 is the government’s job.	1	2	3	4	5
Disruptivity (adapted from perceived severity: [30]; p. 225)
4. Having COVID 19 would be disruptive to my everyday life.	1	2	3	4	5
5. Having COVID 19 would be disruptive to my life overall.	1	2	3	4	5
6. Having COVID-19 would be disruptive to my physical health.	1	2	3	4	5
7. Having COVID-19 would be disruptive to my social life.	1	2	3	4	5
Health importance (adapted from health involvement, [26]; p. 384)
8. I am concerned about my health and am taking action to prevent COVID-19.	1	2	3	4	5
9. My health is my top priority.	1	2	3	4	5
10. Taking care of my health means a lot to me.	1	2	3	4	5
Invulnerability (adapted from perceived susceptibility, [29]; p. 277)
11. I am less likely than most people to get COVID-19	1	2	3	4	5
12. I am not at risk for getting infected with COVID-19.	1	2	3	4	5
13. My body could fight off COVID-19 infection.	1	2	3	4	5
14. People like me don’t get COVID-19.	1	2	3	4	5
15. There is little chance that I could get or spread COVID-19 from what I do in my everyday life.	1	2	3	4	5
Effectiveness of health procedures (adapted from response efficacy: [27]; p. 296)
16. Avoiding crowds is an effective method for fighting COVID-19.	1	2	3	4	5
17. Practicing social distancing is an effective method for avoiding COVID-19.	1	2	3	4	5
18. Staying at home is an effective method for avoiding COVID-19.	1	2	3	4	5
19. Washing your hands frequently is an effective method for avoiding COVID-19.	1	2	3	4	5
20. Wearing a surgical mask is an effective method for avoiding COVID-19.	1	2	3	4	5
BEHAVIORAL OUTCOMES
Rule following (adapted from therapy compliance, [26]; p. 384)
21. I follow the rules for sheltering in place.	1	2	3	4	5
22. I have chosen not to visit friends and family.	1	2	3	4	5
23. I only leave home for reasons sanctioned by the government.	1	2	3	4	5
Health precautions (adapted from intention, [27]; p. 297)
24. I intend to practice social distancing to avoid COVID-19.	1	2	3	4	5
25. I intend to stay at home to avoid COVID-19.	1	2	3	4	5
26. I intend to wash my hands frequently to avoid COVID-19.	1	2	3	4	5
27. I intend to wear a surgical mask to avoid COVID-19.	1	2	3	4	5
Giving health advice (adapted from safety citizen role, [28]; p. 178)
28. I explain to others how to behave to stay healthy and safe.	1	2	3	4	5
29. I express my opinions on health and safety matters even when others disagree.	1	2	3	4	5
30. I frequently speak up and encourage others to engage in safe and healthy behavior.	1	2	3	4	5
31. I help others take the correct actions to remain healthy and safe.	1	2	3	4	5
32. I often make health- and safety-related recommendations about various activities.	1	2	3	4	5