J. (Jakob) Kasper
PhD Candidate
Faculty of Social and Behavioural Sciences
CW : Political Communication & Journalism
Area of expertise: response to global challenges, political identities, polarisation, political engagement
Visiting address
- Nieuwe Achtergracht 166
Postal address
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Postbus 15791
1001 NG Amsterdam
Contact details
Social media
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Profile
I am a PhD candidate at ASCoR affiliated with the doctoral network ‘Interdisciplinary Perspectives on the Politics of Adolescence and Democracy’ and the Hot Politics Lab.
Before joining the University of Amsterdam, I completed my Bachelor's and Master's degrees in Psychology at the University of Heidelberg (Germany) and spent a year as an exchange graduate student at Cornell University (USA).Research expertise
My research focuses on the intersection of social/cognitive psychology and politics. Specifically, I am interested in:
• How people, particularly adolescents, respond to pressing global challenges like the climate crisis and rising societal inequality
• How these challenges shape political identities and political polarization
• How we can enhance political engagement, bridge affective and fact-based divides within our society, and promote societal cooperation towards common societal goals. -
Publications
- refereed (5)
- academic (6)
- professional (1)
- popular scientific (1)
- conference contributions (1)
- recognitions (15)
- working papers / preprints (1)
2025
- Kasper, J., & Bakker, B. N. (2025). Alexa Bankert. When Politics Becomes Personal: The Effect of Partisan Identity on Anti-Democratic Behavior. Public Opinion Quarterly. https://doi.org/10.1093/poq/nfaf025
Kasper, J., & Gilovich, T. (2025). Do People Prefer to Share Political Information That Boosts Their Ingroup or Derogates the Outgroup? Journal of Experimental Psychology: General, 154(5), 1221–1235. https://doi.org/10.1037/xge0001683 [details]- Kasper, J., Schumacher, G., & Bakker, B. N. (2025). Establishing the Construct and Predictive Validity of Brief Measures of Affective Polarization. European Journal of Political Research, 64(4), 2146-2160. https://doi.org/10.1111/1475-6765.70022 [details]
- Laffineur, C., Kasper, J., te Brinke, L. W., Bakker, B. N., & Schumacher, G. (2025). Political Interest, Activism, and Affective Polarization: Dutch Adolescents and Adults are not that Different. Tijdschrift voor Communicatiewetenschap, 53(2), 194-204. https://doi.org/10.5117/TCW2025.2.006.LAFF [details]
2023
- Kasper, J., Fiedler, K., Kutzner, F., & Harris, C. (2023). On the role of exploitation and exploration strategies in the maintenance of cognitive biases: Beyond the pursuit of instrumental rewards. Memory & Cognition, 51, 1374–1387. https://doi.org/10.3758/s13421-023-01393-8
2026
- Kasper, J., Lee, R. T., Binnendyk, J., Pennycook, G., & Sezer, Ö. (2026). People overestimate support for “cancellation”. OSF Preprints. https://osf.io/preprints/psyarxiv/pxva8_v3 [details]
- Kasper, J., Schumacher, G., Te Brinke, L. W., Crone, E. A. M., & Bakker, B. N. (2026). Coming of Age in Polarized Times: Affective Polarization Across Adolescence.
- Schumacher, G., Kasper, J., van der Velden, M. A. C. G., Zaslove , M., Rooduijn, M., & Bakker, B. N. (2026). Strengthening Democracy with Interventions.
2025
- Kasper, J., Bakker, B. N., Lelkes, Y., & Schumacher, G. (2025). Beyond Valence: Arousal as a Core Dimension of Affective Polarization. PsyArXiv. https://doi.org/10.31234/osf.io/5dfbj_v1 [details]
2024
- Kasper, J., Schumacher, G., & Bakker, B. N. (2024). Establishing the Construct and Predictive Validity of Brief Measures of Affective Polarization. (v1 ed.) PsyArXiv. https://doi.org/10.31234/osf.io/gb32z [details]
- Laffineur, C., Kasper, J., te Brinke, L. W., Bakker, B. N., & Schumacher, G. (2024). Political activism, interest, and affective polarization: Dutch adolescents and adults are not that different. (v1 ed.) PsyArXiv. https://doi.org/10.31234/osf.io/aux5h [details]
2024
- Schumacher, G., Bakker, B., Kasper, J., & Zaslove , M. (2024). Alarmisme over antidemocratische jongeren is misplaatst. Web publication or website, Stukroodvlees.nl. https://stukroodvlees.nl/alarmisme-over-antidemocratische-jongeren-is-misplaatst/ [details]
2025
- Bakker, B. N., Kasper, J., & Schumacher, G. (2025). Opinie: ‘Vanaf 16 jaar stemmen? De jongere is er klaar voor’: Opinion: 'Voting from the age of 16? Young people are ready for it'. AD. https://www.ad.nl/opinie/opinie-vanaf-16-jaar-stemmen-de-jongere-is-er-klaar-voor~ab2d4131
2024
- Kasper, J., Schumacher, G., & Bakker, B. N. (2024). Putting the Affect into Affective Polarization: New Insights into Conceptualization and Measurement.
Prize / grant
- Kasper, J. (2025). The Cancellation Gap: Do we actually know what causes someone to be canceled? ($6,505.00).
Media appearance
- van de Wetering, J., Bakker, B., van den Bos, W., Te Brinke, L., Green, K., van de Groep, S., Kasper, J., Ma, I., Nabben, F., Schumacher, G., Sweijen, S., Toenders, Y. & Crone, E. (01-03-2026). Jongerenperspectief op polarisatie. Van verdeeldheid naar verbinding.. Jongerenperspectief op polarisatie. Van verdeeldheid naar verbinding.. https://heyzine.com/flip-book/c0df86f13e.html
- Kasper, J. (20-01-2026). Politics Doesn’t Define How Most People See Themselves. The Inquisitive Mind.. Politics Doesn’t Define How Most People See Themselves.. https://www.in-mind.org/blog/post/politics-doesnt-define-how-most-people-see-themselves
- Kasper, J. & Bakker, B. (20-01-2026). Stop Formatting Before the Desk Reject: A Proposal for Staged Submissions Blog of Trial and Error. Stop Formatting Before the Desk Reject: A Proposal for Staged Submissions.. https://doi.org/10.36850/0fe2a79d-7165
- Bakker, B., Kasper, J. & Schumacher, G. (01-07-2025). Vanaf 16 stemmen? Jongeren is er klaar voor. [Web] Algemeen Dagblad.. Vanaf 16 stemmen? Jongeren is er klaar voor.. https://www.ad.nl/opinie/opinie-vanaf-16-jaar-stemmen-de-jongere-is-er-klaar-voor~ab2d4131/?referrer=https%3A%2F%2Fwww.linkedin.com%2F
- Schumacher, G., Bakker, B., Kasper, J., Zaslove , M., Couto de Jesus, G. & Laffineur, C. (28-11-2024). Fact Sheet - Jongeren en de Politiek: Minder interesse, maar actiever dan volwassenen [Web] OSFHOME. Alarmisme over antidemocratische jongeren is misplaatst. https://osf.io/am8eb
- Crone, E., Te Brinke, L., Sweijen, S., Bakker, B., Schumacher, G., Kasper, J., Laffineur, C. & Couto de Jesus, G. (09-11-2023). Wat vinden jonge mensen van de politiek? [Web] Young people show more interest in specific political subjects than in Dutch politics. Young people show more interest in specific political subjects than in Dutch politics. https://www.eur.nl/en/news/young-people-show-more-interest-specific-political-subjects-dutch-politics
Talk / presentation
- Kasper, J. (speaker), Schumacher, G. (speaker), Te Brinke, L. (speaker), Crone, E. (speaker) & Bakker, B. (speaker) (2026). The Development, Level, and Malleability of Affective Polarization among Adolescents, Annual Meeting of the European Association for Social Psychology.
- Kasper, J. (speaker), Schumacher, G. (speaker), Te Brinke, L. (speaker), Crone, E. (speaker) & Bakker, B. (speaker) (2026). The Development, Level, and Malleability of Affective Polarization among Adolescents., Annual Meeting of the International Society for Political Psychology.
- Schumacher, G. (speaker), Kasper, J. (speaker), van der Velden, M. A. C. G. (speaker), Zaslove , M. (speaker), Rooduijn, M. (speaker) & Bakker, B. (speaker) (2026). Strengthening Democracy with Interventions: A Conceptual Replication of a Megastudy in the Netherlands, Biannual Meeting of the German Society for Psychology.
- Kasper, J. (speaker) (2025). Conceptualizing and Measuring Affective Polarization: The Role of Valence and Arousal, Dutch Political Science Conference. .
- Kasper, J. (speaker) (2025). Conceptualizing and Measuring Affective Polarization: The Role of Valence and Arousal, Meeting of the International Society for Political Psychology. .
- Kasper, J. (speaker) (2024). Adolescents & Affective Polarization, Hot Politics Lab Speaker Series.
- Kasper, J. (speaker) (2024). Putting the Affect into Affective Polarization: New Insights into Conceptualization and Measurement, Hot Politics Lab Speaker Series.
Others
- Laffineur, C. (participant), Kasper, J. (participant) & Couto de Jesus, G. (participant) (8-6-2026 - 12-6-2026). IP-PAD Doctoral Network Consortium Meeting, London (organising a conference, workshop, ...).
2025
- Kasper, J., Schumacher, G., & Bakker, B. N. (2025). Assessing Affective Polarization A Validation of Brief Measures: A Validation of Brief Measures. University of Amsterdam, Amsterdam School of Communication Research. https://files.osf.io/v1/resources/gb32z/providers/osfstorage/65a56fc41cba3e0cc9018328?action=download&direct&version=3 [details]
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Ancillary activities
No ancillary activities
Kasper, J., & Gilovich, T. (2025). Do People Prefer to Share Political Information That Boosts Their Ingroup or Derogates the Outgroup? Journal of Experimental Psychology: General, 154(5), 1221–1235.