1. Principal Investigator of the European Social Survey ERIC, Universitat Pompeu Fabra, Barcelona, Spain; and Deputy Director of the Research and Expertise Centre, Survey Methodology in the Political and Social Sciences Department, Universitat Pompeu Fabra , Barcelona, Spain
2. Head of Team, Cross-Cultural Survey Methods, Survey Design and Methodology Department, GESIS—Leibniz Institute for the Social Sciences , Mannheim, Germany
3. Head of the Translation Workpackage, European Social Survey ERIC, Mannheim, Germany; and Senior Researcher, Survey Design and Methodology Department, GESIS—Leibniz Institute for the Social Sciences , Mannheim, Germany
4. Researcher, Research and Expertise Centre for Survey Methodology, Political and Social Sciences Department, Universitat Pompeu Fabra, Barcelona, Spain; and PhD Candidate, Department of Translation and Language Sciences, Universitat Pompeu Fabra , Barcelona, Spain
5. Senior Client Training Consultant, The Nielsen Company (Germany) GmbH (NielsenIQ) , Frankfurt am Main, Germany