Table 3.

Questionnaire and variables definition.

Variable	Questionnaire verbatim	Values
Financial knowledge [29]
Inflation	Five siblings receive a gift of €1000, which they share equally. If they must wait a year to get their share of the €1000 and that year's inflation is expected to be 1%, when they receive the money they will be able to buy: a) More than they could buy today b) The same c) Less	1: correct 0: incorrect or not answered
Simple Interest	You deposit 100 euros in a savings account with a fixed interest rate of 2% per annum. This account does not generate any fees or taxes. If you do not make any other deposits into this account or withdraw any money, how much money will be in the account at the end of the first year once the interest is paid to you?	1: correct 0: incorrect or not answered
Compound Interest	Based on the assumption in the previous question, if you do not make any deposits or withdraw any money, how much money will be in the account after five years? - More than 110 euros - Exactly 110 euros - Less than 110 euros	1: correct 0: incorrect or not answered
Investment Risk	It is generally possible to reduce the risk of investing in the stock market by buying a wide variety of shares.	1: correct 0: incorrect or not answered
Number of right answers	Aggregation of previous answers. Number of correct answers	0 to 4
Socio-demographic variables
Gender	Gender of the individual	1: female 0: male Missed: otherwise
Age	Age of the individual (number of years)	11 to 50
Previous studies	Do you study or have you studied economics?	1: yes 0: no
Self-perceived previous knowledge	What level of knowledge do you consider you have?	1: low 2: medium 3: high
Rating	How would you rate the training session? Students evaluate the course from 0 to 10. The evaluation is then recoded from 0 (D: Failed) to 3 (A: Outstanding).	0: D failed 1: C passed 2: B notable 3: A outstanding
Amusing presentation	Did you enjoy the presentation?	1: yes 0: no