social psychology at Amsterdam University and earned a Ph.D. on adult
education . Employed at Utrecht University, senior professor since
1984. Visiting professor Institute of Psychology, Pune, India, 1998
till present also on adoption. Between 1978-1982 he was personal advisor
to the Minister of Education of India.
Emeritus professor, 2005, still working on contract basis at Utrecht
University, director of the Adoption Department of the Faculty of
Social Sciences. Main research projects: History of adoption of
Holland, motives of adoptive parents, attachment issues, evaluation of
adoption of children from Thailand longitudinal study, causes of
adoption failures, effects of neglect and abuse (Romanian adoptive
children), foetal alcohol syndrome by adoptive Polish children.
He has written himself or together with colleagues about 30 books, and
a large number of articles in scientific and other journals, in USA,
Great Britain, Germany and France. He still gives lectures in many
countries. Appears often for discussions concerning adoption issues on
television, radio and others.