Part 3 of the four episode series produced for the course Open Science for Physicists (OS4P). We discuss with our guest, Dr. Inge Stegeman, who is a neuro-otologist at the University Medical Center Utrecht, about the advantages and pitfalls of open science practices, and how to investigate if these practices have the positive effects that are claimed by their advocates. You can find more about the course at github.com/SanliFaez/OS4Physicists