Personal profile
Research
My research focuses on issues in social epistemology, philosophy of science, and philosophy of religion. Currently, most of it is in collective epistemology and political epistemology: can groups have beliefs and knowledge, are there collective intellectual virtues, what determines the epistemic performance of groups, how do people form, maintain, and reason about their political beliefs? I also apply these issues in thinking about the epistemic qualities of liberal democracy.
Teaching
I teach epistemology, philosophy of science, business ethics, and – if I get the opportunity – philosophy of religion.
Grants
- The impact of online battles: Use and implications of political conflict frames in a digital media environment
(with Sanne Kruikemeier (ASCoR, UvA) and Rens Vliegenthart (ASCoR, UvA))
NWO Open Competition for Digitalization SSH, 2020–2024 - Knowledgeable Democracy: A Social-Epistemological Inquriy
NWO Vidi project, 2016–2022 - The Epistemic Responsibility of the University
(with René van Woudenberg and Rik Peels)
Templeton World Charity Foundation, 2016–2019 - Science Beyond Scientism
(with René van Woudenberg, Gijsbert van den Brink, and Gerrit Glas)
Templeton World Charity Foundation, 2012–2015 - Commercializing Science and the Flow of Knowledge
NWO Veni project, 2010–2014
Ancillary activities
- De Ridder Onderwijs en trainingen | Gouda | Directeur/eigenaar | 2020-01-01 - present
- Driestar educatief | Gouda | Lid wetenschappelijke adviesraad | 2023-09-01 - 2028-08-31
- College voor Toetsen en Examens | Utrecht | Voorzitter schrijfcommissie syllabus Filosofie | 2024-09-01 - 2026-02-27
- KNAW | Amsterdam | Voorzitter schrijfcommissie Nederlandse Gedragscode Wetenschappelijke Integriteit | 2025-02-01 - 2026-06-30
Ancillary activities are updated daily
Education
- Ph.D. in Philosophy, Delft University of Technology, 2007
- M.A. in Philosophy cum laude, Vrije Universiteit Amsterdam, 2007
- M.Sc. in Systems Engineering and Policy Analysis cum laude, Delft University of Technology, 2000
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Collaborations and top research areas from the last five years
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The Impact of Online Political Conflict Frames on Party Evaluations and Trust in Politicians
van der Goot, E. S., Hameleers, M., Vliegenthart, R., de Ridder, G. J. & Kruikemeier, S., 2026, In: Media Psychology. 29, 2, p. 337-360 24 p.Research output: Contribution to Journal › Article › Academic › peer-review
Open Access -
The University, Epistemic Power, and Institutional Epistemic Responsibilities
Lechner, I. M., de Ridder, J., van Woudenberg, R. & Anttila, S., 2026, In: Social Epistemology. 40, 2, p. 214-228 15 p.Research output: Contribution to Journal › Article › Academic › peer-review
Open Access -
Toward an understanding of collective intellectual humility
Krumrei-Mancuso, E. J., Pärnamets, P., Bland, S., Astola, M., Cichocka, A., de Ridder, J., Mercier, H., Meyer, M., O'Connor, C., Porter, T., Tanesini, A., Alfano, M. & Van Bavel, J. J., Jan 2025, In: Trends in Cognitive Sciences. 29, 1, 13 p.Research output: Contribution to Journal › Comment / Letter to the editor › Academic
Open Access -
Denken voor het leven. Feestbundel voor René van Woudenberg
Peels, R., de Ridder, J. & Sorel, D., 2025, Eburon.Research output: Book / Report › Book › Academic › peer-review
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Development of practical tools to realize the epistemic responsibilities of universities: a co-design study
Lechner, I., Ajdari, E., van Woudenberg, R., de Ridder, J., Bouter, L. & Tijdink, J., 2025, In: Policy Reviews in Higher Education. 9, 1, p. 7-31 25 p.Research output: Contribution to Journal › Article › Academic › peer-review
Open Access
Courses
Projects
- 4 Finished
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Epistemic Progress in the University
Peels, R. (Project Researcher), van Woudenberg, R. (Project Researcher) & de Ridder, J. (Project Researcher)
23/09/20 → 23/09/23
Project: Research
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The Epistemic Responsibilities of the University
Koster, E. (Project Researcher), de Ridder, J. (Project Researcher), van den Brink, G. (Project Researcher), Peels, R. (Project Researcher), Bouter, L. (Project Researcher), Bisschop, W. T. C. (Project Researcher), van Woudenberg, R. (Principal Investigator), Haven, T. (Project Researcher) & Rutten, E. (Project Researcher)
1/09/16 → 31/07/21
Project: Research
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Knowledgeable Democracy: A Social-Epistemological Inquiry
de Ridder, J. (Principal Investigator), Lagewaard, T. (Project Researcher), Ranalli, C. B. (Project Researcher), Hannon, M. J. (Project Researcher) & Ranalli, C. B. (Project Researcher)
1/01/16 → 31/03/23
Project: Research
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Science Beyond Scientism
Rutten, E. (Project Researcher), de Ridder, J. (Project Researcher), Van Eyghen, H. (Project Researcher), Peels, R. (Project Researcher), Asma, L. (Project Researcher), de Bruin, L. (Project Researcher), Kloosterboer, N. (Project Researcher), Robbins, S. (Project Researcher) & van Woudenberg, R. (Principal Investigator)
1/01/13 → 1/04/18
Project: Research
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De waarde van waarheid in verscheurde tijden
Peels, R. (Speaker), Rusman, F. (Speaker), de Ridder, J. (Speaker), Damstra, A. (Speaker) & Verhagen, L. (Speaker)
3 Apr 2025Activity: Lecture / Presentation › Academic
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Zorgen voor de waarheid
Peels, R. (Speaker) & de Ridder, J. (Speaker)
25 Apr 2025 → …Activity: Lecture / Presentation › Academic
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Waarheid en onwaarheid in tijden van misinformatie
Peels, R. (Speaker) & de Ridder, J. (Speaker)
2025 → …Activity: Lecture / Presentation › Academic
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Love of Learning in Fractured Societies
de Ridder, J. (Speaker)
18 Mar 2021Activity: Lecture / Presentation › Academic
Prizes / Grants
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Epistemic Progress in the University, Templeton World Charity Foundation
van Woudenberg, R. (Recipient), de Ridder, J. (Recipient) & Peels, R. (Recipient), 2020
Prize / Grant: Grant › Academic
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Grant The Epistemic Responsibilities of the University, Templeton World Charity Foundation, €1.750,000
Peels, R. (Recipient), de Ridder, J. (Recipient) & van Woudenberg, R. (Recipient), 2016
Prize / Grant: Grant › Academic
Press/Media
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Democratie in de greep van de big tech: Wie bepaalt de waarheid?
Peels, R., van der Velden, M. & de Ridder, J.
1/04/25
1 Media contribution
Press/Media: Public Engagement Activities
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Nuances saai? Ze zij onmisbaar op zoek naar de waarheid
26/03/25
1 Media contribution
Press/Media: Public Engagement Activities
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Meningen zijn te belangrijk om aan het individu over te laten
1/03/25
1 Media contribution
Press/Media: Other
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