Ruth Katharina Ditlmann, Ph.D.

Ehemalige Mitarbeiterin der Abteilung


Migration, Integration und interkulturelle Konflikte
Nationale Identität | Intergruppen Konflikte und Konfliktlösung | Intergruppen Kontakte | Psychologisches "Nudging"


2014 – 2015 Postdoctoral Fellow Department of Psychology and Woodrow Wilson School of Public and International Affairs Princeton University, Princeton, NJ

Seit 10 2012 Wissenschaftliche Mitarbeiterin, Wissenschaftszentrum Berlin für Sozialforschung.

09 2007   09 2012 PhD student an der Yale University im Social Psychology Department.

09 2007 05 2009 Mphil, MS student an der Yale University im Social Psychology Department.

08 201009 2012 Visiting Research Scholar at Columbia University im Psychology Department.

10 2001 08 2007 Studium der Diplom Psychologie an der Universität Konstanz

08 2005 04 2006 Baden-Wuerttemberg CT Department of Higher Education und Cusanuswerk Stipendien für Forschungspraktikum an der Yale University

08 200408 2005 DAAD Stipendium für Austauschstudium an der Yale University im Social Psychology Department  

Ausgewählte Publikationen

Alizade, J., Dancygier, R., & Ditlmann R. K. (in press). National penalties reversed: The local politics of responsiveness to immigrants. Journal of Politics.

Hässler, T., Ullrich, J., Bernardino, M., Shnabel, N., Van Laar, C., Valdenegro, D., Sebben, S., Tropp, L., Visintin, E.P., González, R., Ditlmann, R. K., Abrams, D. Selvanatha, H. P., Bankovic, M, Wright, S., Von Zimmermann, J., Pasek, M. H., Aydin, A. L., Žeželj, I., [… ] Ugarte, L.M. (2020). A large-scale test for the link between intergroup contact and social change. Nature Human Behaviour, 4(4), 380-386.

Kai Barron, Ruth Ditlmann, Stefan Gehrig, Sebastian Schweighofer-Kodritsch (2020): Explicit and implicit belief-based gender discrimination: A hiring experiment. WZB Discussion Paper SP II 2020–306.

Ditlmann, R. K., & Kopf-Beck, J. (2019). The meaning of being German: An inductive approach to national identity. Journal of Social and Political Psychology, 7(1), 423-447.

Ditlmann, Ruth/Samii, Cyrus/Zeitzoff, Thomas (2017): "Addressing Violent Intergroup Conflict from the Bottom Up?". In: Social Issues and Policy Review, Vol. 11, No. 1, S. 38-77.
Ditlmann, Ruth/Purdie-Vaughns, Valerie/Dovidio, John F./Naft, Michael J. (2017): "The Implicit Power Motive in Intergroup Dialogues about the History of Slavery". In: Journal of Personality and Social Psychology, Vol. 112, No. 1, S. 116-135.
Ditlmann, Ruth/Samii, Cyrus (2016): "Can Intergroup Contact Affect Ingroup Dynamics? Insights from a Field Study with Jewish and Arab-Palestinian Youth in Israel". In: Peace and Conflict - Journal of Peace Psychology, Vol. 22, No. 4, S. 380-392.
Ditlmann, Ruth Katharina/Levy Paluck, Elizabeth (2015): "Field experiments". In: James D. Wright (Ed.): International Encyclopedia of the Social & Behavioral Sciences, Vol. 9. Amsterdam u.a.: Elsevier, S. 128-134.
Ditlmann, Ruth K./Lagunes, Paul (2014): "The (Identification) Cards You Are Dealt. Biased Treatment of Anglos and Latinos Using Municipal-Issued versus Unofficial ID Cards". In: Political Psychology, Vol. 35, No. 4, S. 539-555. (Vorab online publiziert 19. August 2013)
Ditlmann, Ruth K./Mayville, Elena/Purdie-Vaughns, Valerie J. (2014): "Organizational and Individual Colorblindness Approaches to Past Injustice". In: Kecia M. Thomas/Victoria C. Plaut/Ny Mia Tran (Eds.): Diversity Ideologies in Organizations. Series in Applied Psychology. New York, NY/London: Routledge, S. 93-117.
Dovidio, John/Gaertner, Sam/Ditlmann, Ruth/West, Tessa (2012): "Intergroup Relations in Post-Conflict Context. How the Past Influences the Present (and Future)". In: Kai J. Jonas/Thomas A. Morton (Eds.): Restoring Civil Societies. The Psychology of Intervention and Engagement Following Crisis. Series Social Issues and Interventions. Chichester u.a.: Wiley Blackwell, S. 135-155.

Lagunes, P., Levin, B., & Ditlmann, R. (2012). Documenting the undocumented: A review of the United States’ first municipal ID program. Harvard Journal of Hispanic Policy, 24.

Dovidio, J. F., Gluszek, A., John, M. S., Ditlmann, R., & Lagunes, P. (2010). Understanding bias toward Latinos: Discrimination, dimensions of difference, and experience of exclusion. Journal of Social Issues, 66(1), 59 - 78.

Ditlmann, R. K., Purdie-Vaughns, V., & Eibach, R. (2010). Heritage and ideology-based national identites and their implications for immigrant citizen relations in the United States and in Germany. International Journal of Intercultural Relations, 35 (4), 395-405.

Purdie-Vaughns, V. & Ditlmann, R. K. (2010). Reflections on diversity science in social psychology. Psychological Inquiry 21(2), 153-159.

Purdie-Vaughns,V., Steele, C. M., Davies, P. G., Ditlmann, R. K., & Randall-Crosby, J. (2008). Social identity contingencies: How diversity cues signal threat or safety for African Americans in mainstream institutions. Journal of Personality and Social Psychology, 94(4), 615-630.


Addressing Violent Inter-Group Conflict from the Bottom Up?
Leitung: Ruth Katharina Ditlmann, Ph.D.
Kooperationspartner: Cyrus SamiiThomas Zeitzoff
Laufzeit: 2016 - 2017
Förderung: WZB

Stateways versus Folkways: The Role of Authority Approval in Intergroup Contact
Leitung: Ruth Katharina Ditlmann, Ph.D.
Kooperationspartner: Betsy Levy Paluck (Princeton University)
Robin Gomila (Princeton University)
Laufzeit: ongoing
Förderung: WZB

Naturalization of Immigrants: Obstacles and Opportunities in German Municipalities
Leitung: Ruth Katharina Ditlmann, Ph.D., Rafaela Dancygier, Ph.D. (Princeton University, USA)
Mitarbeiter/innen: Quinn Albaugh (Princeton University, USA)
Laufzeit: 2015 - 2020
Förderung: University Center for Human Values and The Mamdouha S. Bobst Center for Peace and Justice at Princeton University

The Meaning of Being German, American, Singaporean: An Inductive Approach to National Identity.
Leitung: Ruth Katharina Ditlmann, Ph.D., Johannes Kopf-Beck (Max Planck Institut für Psychatrie, München); Valerie Purdie-Vaughns (Columbia University, USA); Shirlena Huang (National University of Singapore); Eric Thompson (National University of Singapore)
Laufzeit: 2012 -
Förderung: WZB, Columbia University and National University of Singapore