Doctor of Philosophy, University Osnabrück, Germany, 1976. Habilitation, University Osnabrück, Germany, 1988.
Teacher Catholic Volksschule, Hamburg, Germany, 1966-1970. Science assistant University Osnabrück, 1970-1979. Professor educational psychology University Hannover, 1979-1994, professor, since 1994.
Guest professor, research fellow University Melbourne, Australia, 1992. Science director Model Project for gifted children, Hannover, 1984-1987.
Member World Council for Gifted and Talented Children (executive committee 1979-1987, vice president 1985-1987, 97-2001, chairman research committee 1993-1997, executive committee since 1995, president since 2001), European Council for High Ability (member executive committee 1990-1994), Deutsche Gesellschaft Psychologie, Deutsche Gesellschaft Erziehungswissenschaft, Arbeitskreis Begabungsforschung (chairman 1991-1997).
Married Sigrid Renate Kipka, November 2, 1966. 1 child, David.