| 1977-1986 |
Professor of Educational Psychology, Univ. of Technology, Berlin |
| 1986-1992 |
Professor of Developmental Psychology, Justus Liebig Univ. of Giessen |
| 1992-1994 |
Professor of Human Development and Family Studies, Pennsylvania State Univ., USA
|
| 1994-2012 |
Professor & Chair of Developmental Psychology, Friedrich Schiller Univ., Jena |
| 1999-2003 |
Chairman of the Board of the German Social Science Infrastructure Services (GESIS) |
|
Member of the Board of Governors of the Univ. of Haifa, Israel |
| 2000-2002 |
President of the German Psychological Society (DGPs) |
| 2002-2006 |
President of the International Union of Psychological Science (IUPsyS) |
| 2008-2012 |
Präsident der International Union of Psychological Science (IUPsyS) |
| since 2013 |
Editor-in-Chief des International Journal of Psychology |