Academic positions

 1995, Apr. -

Senior Researcher and Lecturer at the University of Cologne, Institute of Didactics and Educational Research
1994, Apr. – 1995, March Researcher at Universitat de Barcelona with a research grant from the European Commission (Human Capital and Mobility Programme), collaborating with Antonio Bartolomé
1993, Apr. – 1994, Febr. Senior Researcher and Lecturer at Cologne University, Department of Education
1992, Oct. – 1993, March Professor for Educational Psychology at University of Erfurt, Department of Education
1991, Oct. – 1992, Sept. Professor for Educational Psychology at Johann-Wolfgang-Goethe University Frankfurt, Department of Psychology
1977, Sept. – 1991, Sept. Researcher and Lecturer at University of Cologne, Department of Education
1977, February PhD at University of Bonn, Department of Psychology
1976, Sept. – 1977, Aug. Assistant at University of Cologne, Department of Education
1974, Sept. -  1976, Aug.
Research Assistant at Teachers’ College Bonn, Department of Psychology
1972, Nov. – 1974, Aug. Research Assistant at University of Bonn, Department of Psychology
 1972, Nov. Diploma in Psychology at University of Bonn, Department of Psychology
1967, Oct. – 1972, Nov. Studies in Psychology, English and Philosophy at Bonn University