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Other activities/andere Aktivitäten

2020- Management Committee (MC) member of the EU COST Action CA19103 LGBTI+ Social and Economic (in)equalities
2019- Researcher at the Minerva Center on Intersectionality in Aging (MCIA) at the University of Haifa, Haifa, Israel
2019-2021 Director of the Institute of Sociology and Social Psychology, University of Cologne
2019-2020 Consultantancy for the European Commission in the project “Science of values and identity in the political process”
2019 Chair of the research ethics committee at the Faculty of Economics and Social Sciences, University of Cologne
2018- GESIS representative for the University of Cologne
2018- Member of the nominations committee for honorary and apl professorships at the Faculty of Economics and Social Sciences, University of Cologne
2018- Member of the international advisory board of the International Journal of Japanese Sociology
2018- Associate editor of Migration and Society, a specialty section within Frontiers in Sociology
2018- Associate editor of Measurement Instruments for the Social Sciences
2018- Associate editor in the journal methods, data, analyses (mda)

2018-2019

Guest editor of a special issue on immigration from the migrants' perspective in the journal Social Inclusion

2017- Associate editor in the journal Survey Research Methods

2017-2019

Member of the research ethics committee at the Faculty of Economics and Social Sciences, University of Cologne

2017-2019 Guest editor of a special issue on measurement invariance: Testing for it and explaining why it is absent in the journal Survey Research Methods
2017-2018 Guest editor of a special issue on Comparative survey analysis: Models, techniques and applications in the journal methods, data, analyses
2017-2018 Guest editor of a special issue on Comparative survey analysis: Comparability and equivalence of measures in the journal methods, data, analyses
9/2017 Visiting Professor, Sapienza University, Rome
2016-2018 Guest editor of a special issue on explaining attitudes toward immigration: findings from the immigration module in the European Social Survey 2014-15 in the Journal of Ethnic and Migration Studies
2016-2017 Guest editor of a special issue on immigration and immigrants in European societies in the International Journal of Comparative Sociology
2016-2017 Statistical and methodological consulting for the OECD
2016 Board member of the evaluation committee of the inter-university Master Program Public Opinion and Survey Research, Switzerland
2015- Editorial board member of the journal Social Science Research
2015- Editor of the book series of the European Association of Methodology (EAM)
2015-2018 Guest editor of a special issue on measurement invariance in cross-national studies in the journal Sociological Methods & Research
2015-2017 Member of the advisory board in the journal Survey Research Methods
2015-2017 President of the European Survey Research Association (ESRA)
2014-  Member of the scientific audit of GESIS
2014-  Advisory board member of the journal Social Problems
2013- Co-director of the University Research Priority Program (URPP) “Social Networks” at the University of Zurich
2013-2016 Co-director of the Department of Sociology, University of Zurich
2013-2015 Vice president of the European Survey Research Association (ESRA)
2011-  Advisory board member of the journal Politische Psychologie – Journal of Political Psychology
2011-2013 Chair of the scientific committee of ESRA
2009-2012 Guest editor of a special issue on the theory of human values in the journal Survey Research Methods