Master of Arts in Psychology, Aachen University of Technology, Germany, 1981. Doctor of Philosophy, Aachen University of Technology, Germany, 1985. Habilitation, Aachen University of Technology, Germany, 1991.
Researcher, assistant professor Aachen University of Technology, 1981—1990. Associate professor Justus-Liebig University, Gießen, 1990—1993. Professor Erfurt University Education, 1993—2001, Erfurt University, 2001—2002, Essen University, 2002—2003, Duisburg-Essen University, since 2003.
Member German Pisa Consortium, 2001—2005. Member review board educational science German Research Foundation, since 2004. Member executive committee Institute for Educational Progress, Berlin, since 2004.
Member of American Educational Research Association, American Psychology Association, European Association for Research on Learning and Instruction (chair, sig individual differences in learning and instruction (earli) 1999—2001), German Psychology Association, German Association for Educational Science (char, sig empirical educational research (aepf) 1999—2003), Rotary International (secretary, rc club gelsenkirchen-buer 2006-2007).
Married Eva-Maria Meese, March 22, 1963. Married Gisela Wohlgemuth, September 22, 1957 (deceased February 15, 1994). Children: Justus Jonas, Alexander, Johanna Marie.