For every data collection, the GUESSS core team at the University of St.Gallen and the University of Bern (Switzerland, see
Organization) develops a high-quality online survey instrument. While certain parts of the survey remain stable in order to allow comparisons across time, each survey has a different conceptual focus in addition.
Survey invitations are then sent to the GUESSS country teams (one per country) who forward it to their own students and to their respective university partners (who then forward it to their students, see
Organization). Data is collected, stored, and prepared by the GUESSS core team.
An overview of previous data collection waves is given here: