The main purpose of this study is to develop and gather validity evidence for a simulation-based test to ensure learning basic competence in gastroscopy.

Inclusion Criteria:

• Medical students enrolled at the University of Southern Denmark who have passed their anatomy exam.
• Experienced endoscopy nurses, who have assisted to more than 100 gastroscopies and with no prior self-performed gastroscopies.
• Experienced medical doctors in medical gastroenterology or surgery, who have self-performed more than 500 gastroscopies.

Exclusion Criteria:

• None

The medical students will be recruited after passing their anatomy exam at the University of Southern Denmark. The endoscopy nurses will be recruited at Odense University Hospital. Medical doctors in medical gastroenterology and surgery will be recruited at the Odense University Hospital, Denmark.