Here you will find the questionnaires/codebooks from previous waves of the GLEN study, which will be published in the first release in June 2026. Some of the surveys were conducted as computer-assisted web interviews (CAWI) and others as pen-and-paper interviews (PAPI). We are providing these here in a preliminary version. The English version of the questionnaires will follow shortly.
If you have any further questions, please do not hesitate to contact us.