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Professor in Science, Technology, and Innovation Studies & Scientific Director at the Centre for Science and Technology Studies (CWTS) in Leiden. Chair of the Science and Evaluation Studies (SES) research group. Co-chair Research on Research Institute (RoRI), founded by Wellcome Trust, University of Sheffield, Leiden University, and Digital Science.

Sarah specialises in social studies of research evaluation, and has published widely on the topic of the relations between quality control mechanisms and knowledge production in different fields. She has also developed a strong international public academic presence with outreach activities in science policy, speaking frequently on the topic of research evaluation and metrics uses.


Sarah represents the Netherlands in a high-level UNESCO Expert Group to write a global recommendation on Open Science (2020-2021) to be adopted by Member States in 2021. The Recommendation is expected to define shared values and principles for Open Science, and identify concrete measures on Open Access and Open Data.

Together with Stephen Curry, Anna Hatch, Inge van der Weijden and James Wilsdon, Sarah authored a RoRI Working Paper that presents the findings of a new survey of Responsible Research Assessment policies and practices in the participant organisations of the Global Research Council (GRC)—most of which are national public funding agencies—with responses from 55 organisations worldwide.