course of studies, universities of Bonn, Vienna, Cologne

1967

diploma in psychology, University of Bonn

1967-1968

invited research scientist, Charles-University, Prague

1968-1976

scientific assistant and research scientist in different positions, University of Bonn

1971

PhD (Dr. phil), University of Bonn

1976

habilitation (venia legendi for psychology), University of Bonn

1976

full professor (ordentlicher Professor, H-4), Educational University of Muenster

1980

full professor (C-4), University of Muenster

2002

Dr. h.c., State University of Human Sciences/Russian Academy of Sciences, Moscow

2009

professor emeritus