First dependent measure
1 = 7-point rating scale
2 = Percent estimate
3 = Perceived risk VAS

Statistical base-rate
5 = 5%
40 = 40%

Intention to get vaccinated
1 = I would definitely not get vaccinated
7 = I would definitely get vaccinated

Perceived severity of VAE
1 = not severe
7 = very severe

Gender
1 = Male
2 = Female

How good are you at working with fractions?
1 = Not at all good
6 = Extremely good

When reading the newspaper, how helpful do you find tables and graphs that are parts of a story?
1 = Not at all helpful
6 = Extremely helpful

When people tell you the chance of something happening, do you prefer that they use words ("it rarely happens") or numbers ("there's a 1% chance")?
1 = Always prefer words
6 = Always prefer numbers

When you hear a weather forecast, do you prefer predictions using percentages (e.g., “there will be a 20% chance of rain today”) or predictions using only words (e.g., “there is a small chance of rain today”)?
1 = Always prefer words
6 = Always prefer percentages

How often do you find numerical information to be useful?
1 = Never
6 = Very often