Table 1.

Items of interest (Believing processes, vaccination status, psychiatric diagnosis control items).

Believing processes Item 1 COVID-19 beliefs: a. Proposition: When I think about the coronavirus (COVID-19), I believe that … (narrative) b. Certainty: On a scale from 0 (not sure) to 100 (quite sure), how sure are you about that while believing? c. Emotion: Using the Emotion Wheel, please identify an emotion that most closely relates to your state while you are believing:… d. Mightiness: On a scale of 0 (not at all) to 10 (very much), how strongly do you experience the emotion while believing? Item 2 Vaccination/Non-vaccination motive beliefs: a. Proposition: I am vaccinated/not vaccinated against COVID-19, because I believe that … (narrative) b. Certainty: On a scale from 0 (not sure) to 100 (quite sure), how sure are you about you about that while believing? c. Emotion: Using the Emotion Wheel, please identify an emotion that most closely relates to your state while you are believing:… d.Mightiness: On a scale of 0 (not at all) to 10 (very much), how strongly do you experience the emotion while believing? Vaccination status Have you been vaccinated against COVID-19? [Yes, fully immunized (at least 2 vaccinations)/Yes, one vaccination/No] Psychiatric Diagnosis Control Items 1. Please indicate which psychiatric disorder(s) you currently have (multiple answers possible): [None/Depressive disorder/Bipolar disorder/Panic disorder/Generalized Anxiety Disorder/Schizophrenia/Eating disorder/Alcohol use disorder/Other substance use disorder/Personality disorders/Other] 2. Please indicate which psychiatric disorder(s) you have ever been diagnosed with (multiple answers possible): [None/Depressive disorder/Bipolar disorder/Panic disorder/Generalized Anxiety Disorder/Schizophrenia/Eating disorder/Alcohol use disorder/Other substance use disorder/Personality disorders/Other] 3. Do you have first-degree relatives with a severe mental disorder (schizophrenia, bipolar disorder, major depressive disorder) [Yes/No]