Jellie Sierksma is an Assistant Professor at the Department of Developmental Psychology. Her research focuses on children’s prosocial behavior and the development of prejudice, stereotypes and discrimination. She studies these topics taking an interdisciplinary approach, combining insights from developmental, social, and educational psychology and by using experimental- and survey-methods.

Jellie obtained her Master degree in social psychology in 2009 (UVA; cum laude) and a PhD in social development in 2015 (University Utrecht). She then obtained a grant to work as a post-doc at the Radboud University Nijmegen for 2 years, followed by a 2-year Rubicon-fellowship at the University of Wisconsin-Madison in the USA. In 2019 she was awarded a Veni-grant by the Netherlands Organisation for Scientific Research (NWO) and in 2022 she started working at Utrecht University.

In Utrecht she is a member of the Ethics Review Board of the Faculty of Social & Behavioural Sciences (FETC) and the steering committee of Migration and Societal Change.