1999Habilitation, Venia Legendi in Special Education Psychology and Rehabilitation, University of Dortmund
1983Dr. rer. nat., Psychology, Cologne University
1975-1980Psychology, Trier University, Licensed Psychologist
1973-1975 Psychology, Philosophy, German, Basel University


since 2020Chairwoman of the Academy Word + Number
2015-2019Distinguished Visiting-Professor, University of Johannesburg, Centre for Education Practice Research (CEPR)
2012-2014Visiting Professor, Centre for Education Practice Research (CEPR) at the University of Johannesburg
1998-2020Professor of Educational Psychology, University of Duisburg-Essen
07/2008-12/2008Visiting Professor, Deptartment of Psychology, Portland State University, Portland, Oregon USA
1990-1998Research Assistant with the Municipal Office of School Psychologists in Cologne; focus on developing and evaluating trainings for children with special educational needs
1987-1990 Research Assistant in research projects at the Psychiatric Clinic for Children and Adolescents in Mannheim
 1983-1987Research Assistant with the research community “The Physically Disabled Child”, Cologne
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