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2016 -

Affiliated Researcher Netherlands Interdisciplinary Demographic Institute, The Hague

2013 -

Part-time Professor Social and Organizational Psychology, University of Curacao, Curacao

2012 -

Honorary Academy Professor Evolutionary Social Psychology, University of Groningen

2011

Honorable Distinction of Profesor Honorario de la Universidad Católica de Santa Maria de Arequipa, Peru

2011          

Profesor Asociado Invitado, Universidad Catolica del Uruquay

2007     

Honorary Research Fellow, International Center for Interpersonal
Relationships Research, Vítoria, Brazil  

2006         

Professor Honorario, Universidad de Palermo, Buenos Aires, Argentinië

2006 - 2012       

Professor of Evolutionary Social Psychology, Uni­versi­ty of Groningen

2006          

Professor Invitado EU Erasmus Mundo Program, Universidad de Valencia

2005 -      

Academy Professor, Royal Netherlands Academy of Arts and Sciences    (KNAW)

2004 -

Member of the Royal Netherlands Academy of Arts and Sciences    (KNAW)

2000        

Professor Invitado, Universidad de Valencia, Spain

1995            

Visiting Professor Arizona State University, Tempe, Arizona

1990 - 2005  

Professor and Chair of Social Psycholo­gy, Uni­versi­ty of Groningen

1986 - 1990  

Senior Lecturer in Work and Organizational Psycho­logy, Catholic University of Nijmegen
1986           

Visiting Professor Hebrew University, Jerusalem

1983-1984     

Fulbright Senior Research Scholar at the Department of Psychology, University of California, Los Angelos
1982              

Honorary Fellow at the Family Study Center & Center for Northwest European Language and Area Studies, University of Minnesot, Minneapolis, Minnesota

1975 - 1986   

Lecturer in Social Psychology, Catholic University of Nijmegen
1971 - 1975    

Lecturer in Social Psychology, University of Gro­ningen