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Diplom (MA equivalent) 1969 in Sociology, Statistics and Philosophy of Science at the University of Mannheim. Ph.D. 1977 in Sociology and Philosophy of Science at the University of Mannheim.
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Research Associate at the University of Mannheim 1970 – 1972. Lecturer in Sociology and Social Research at the University of Hamburg 1972 – 1979.
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Project Director at ZUMA (now GESIS Mannheim) for the first general social survey (ALLBUS) in Germany 1979 - 1981. Professor for empirical research and methodology at the University of Giessen 1981 – 1993 and 2000 – 2008.
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Program Director for societal Monitoring at GESIS Mannheim 1994 - 2000. Since 2008 Professor emeritus at the University of Giessen.
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2011 – 2013 Codirector of the International Laboratory of Socio-Cultural Research at the State Research University Higher School of Economics(HSE) in Moscow.
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Since 2015 Humboldt Research Fellow of the polish Foundation for basic research at the Cardinal Wysczinski University Warsaw.
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Guest Professorships at the Institute of higher Studies(IHS) and University of Vienna(also in 2018), WZB Berlin(2017), University of Lodz, Utrecht(ICS), Oxford, University of Haifa, University of Tel-Aviv, University of Bergen,
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Since 1982 lecturer at different spring seminars and summer schools at GESIS Cologne
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Since 1989 continuously Lecturer for the course causal modeling and structural equation models at the Essex Summer School for Social Science Data Analysis inEngland
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Since 1991 continously Lecturer for the course Structural Equation Modeling at the Swiss Summer School in Lugano
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Workshops for Structural Equation modelling in the Universities of Bergen and Bodo (Norway), North Texas Dallas (USA) Göttingen, Stuttgart, Köln, Marburg, Hamburg, Bremen, Passau (Germany), Hongkong, Huangchou (China), Lisboa (Portugal), LSE London(Great Britain), Vienna (Austria), Warsaw (Poland) Moscow and St. Petersburg(Russia), Bern, St. Gallen and Zurich (Switzerland).
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Workshops with Prof. Aizen (University of Massachusetts, Amherst, USA) SEM meets Theory of planned behaviour in the Universities of Zurich, Bergen, Göttingen, Napoli, Guadalajara(Mexico)
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Nine research grants from German Science Foundation (DFG)
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Two research grants from the Thyssen foundation
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One research grant from Volkswagen Foundation for a ten-year-study on group related enmity in Germany 2001-2011(together with W.Heitmeyer/S.Kühnel/U.Wagner).
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Two research grants from the German-Israeli Foundation (GIF) (with M.Semyonov/Tel-Aviv and R.Raijman/ Haifa). 2000-2004.
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Winning a competition in 2012 with an international team to revise the immigration module of the European Social Survey (ESS) scheduled for 2014 (with A.Heath/Oxford, E.Davidov/Zürich, E.Green/Lausanne, A.Ramos/ Lisboa)
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Founding member of the DFG research training school “group-related enmity” at the Universities in Bielefeld-Marburg/Giessen (DFG Graduiertenkolleg Gruppenbezogene Menschenfeindlichkeit) running from 2003-2012
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One research grant from State Research University Higher School of Economics together with S.Schwartz(Jerusalem/Moscow): Socio-Cultural Change in Russia. 2012 and 2013.
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LIST Experiment in the Dutch LISS panel study in 2014 together with Matthew Creighton (University of Dublin) and Diana Zavala-Rojas (University of Barcelona Pompeu Fabre)
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Development and implementation of a new module on attitudes and contacts with migrants and refugees in the new GESIS ACCESS Panel started in 2016.
