This study is an online survey to assess risk literacy among students of the medical and dentistry faculties in Portugal. Risk literacy is the capability to understand and interpret statistical information, based on simple rules of thumb.

The investigators assess the level of "medical risk literacy" among Portuguese medical and dentistry students with the Quick Risk Test (QRT) and the multiple choice version of the Berlin Numeracy Test (BNT).

This study is an online survey to assess risk literacy among students of the medical and dentistry faculties in Portugal.

The primary outcome is the measurement of "medical risk literacy" among Portuguese medical and dentistry students as assessed with the Quick Risk Test (QRT) and the multiple choice version of the Berlin Numeracy Test (BNT).

Secondary outcomes is to investigate whether study year, faculty, and prior statistical education have an impact on the level of risk literacy. Participants will be invited via email through established faculty mailing lists or established social media channels. For the survey, an online-survey tool (Unipark, academic program or Questback) will be used. Participation is voluntary and can be withdrawn at any time by aborting the survey (e.g. via closing the browser). Informed consent will be acquired at the beginning of the survey. English and Portuguese versions will be available to the participant.

As incentive to participate, participants completing the brief (ca.15 minutes) online-questionnaire will be granted a free subscriptions to the AMBOSS medical learning platform (2 weeks) and have the option to be entered into a lottery with the possibility of winning one of 3 free 6 month subscriptions.

After completion of the questionnaire, participants will be re-directed to a dedicated AMBOSS website where they can enter their email-address to take part in the lottery. This assures strict separation of the anonymous experimental data and the AMBOSS subscription data. Prior to initiation of the questionnaire, in the invitation email, participants will be provided the full participant information and made aware that, due to anonymity, it will not be possible to retrospectively delete their responses once the survey has been completed.

As the primary outcome is a baseline assessment and the secondary outcomes are exploratory analyses, no hypotheses will be tested in this survey.

Inclusion Criteria:

• medical and dentistry students of Portuguese faculties
• active matriculation at a Portuguese faculty
• completion of the questionnaire

Exclusion Criteria:

• no active matriculation at a Portuguese faculty

All matriculated students at Portuguese medical and dental faculties will be invited to participate (participation of faculties to be confirmed).

We plan to share our anonymized raw data.

After the completion of the study.

undecided. Further research in risk literacy. For example other countries, or time delay. Or intervention studies.