2011

Habilitation in Sociology (venia legendi),

Faculty of Management, Economics and Social Sciences, University of Cologne

2000

Doctoral Degree in Sociology,

Faculty of Arts and Humanities, University of Cologne

1992

Magister Artium in Sociology,

Justus-Liebig-University Gießen

1989

First State Examination for Teachers,

Justus-Liebig-University Gießen

Private Lecturer (Privatdozent),

Institute of Sociology and Social Psychology,

University of Cologne

Temporary W3 Professor for Methods of Empirical Social Research,

Chair for Methods of Empirical Social Research,

10.2015 - 03.2017

Temporary W3 Professor for Quantitative Methods of Empirical Social Research,

Institute of Political Science and Sociology,

Julius-Maximilians-University of Wuerzburg

08.2012 - 08.2014

Commissarial Head

GESIS – Data Archive for the Social Sciences in Cologne and

Temporary W3 Professorship for Empirical Social Research,

University of Cologne

2011 - 2012

Private Lecturer (Privatdozent),

Institute for Data Analysis and Data Archiving,

University of Cologne

2004 - 2011

Research Assistant on the Position of an Academic Counsillor (Akademische Ratsstelle),

Central Archive for Empirical Social Research, since 2009 Institute for Data Analysis and Data Archiving

University of Cologne

2000 - 2004

Research Assistant (Wissenschaftlicher Mitarbeiter),

Central Archive for Empirical Social Research,

University of Cologne

1993 -1999

Research Assistant (Wissenschaftlicher Mitarbeiter),

Chair for Empirical Social Reserach (Prof. Dr. Wolfgang Jagodzinski),

Institute for Applied Social Research,

University of Cologne