Research

My working papers examine various aspects of intergroup relations and conflict. They primarily focus on measuring discrimination in new contexts and for understudied identity groups, developing more effective methodological approaches for measuring discrimination, and exploring ways to reduce it. A growing strand of this work uses AI and large language models as both research tools and subjects of inquiry.

My works in progress draw on my experiences in extreme poverty and primarily focus on understanding the attitudes (political and otherwise) of individuals facing food and housing needs, as well as what the public thinks of them.

Fundamental Needs Lab

My current work on class discrimination and fundamental needs is housed in the Fundamental Needs Lab, joining my personal experiences with my research on human rights and discrimination.

Visit Fundamental Needs Lab →

I also have some projects that examine disability discrimination, building on my years living in a group home for people with developmental disabilities and my work with the disabled community in Colorado. In addition to these substantive areas, I'm also working on methodological projects that introduce new ways of measuring discrimination, human rights, inclusivity, and other important social science concepts.

Manuscripts

See this research visualized. Interactive charts showing output over time, themes, venues, and geography — plus a live 3D audit study and an animated walkthrough of the AI-persuasion paper.
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Revise and Resubmit

(7 papers)

1. Volha Chykina, Charles Crabtree, and Kiyotero Tsutsui. "Measuring rights and inclusivity across American universities." (Revised and resubmitted at Nature Human Behavior.) Methods Human rights

2. Charles Crabtree, John B. Holbein, and Cecilia Hyunjung Mo. "Micro-inequities against Asian Americans: Evidence from a large-scale field experiment." (Revise and resubmit at American Political Science Review.) Discrimination

3. Andreas Wimmer, Bart Bonikowski, Charles Crabtree, Matt Golder, Kiyoteru Tsutsui. "The shadow side of rootedness: How geographic stability across generations increases radical-right attitudes." (Revise and resubmit at American Journal of Sociology.) Populism

4. Charles Crabtree, S. Michael Gaddis, John B. Holbein. "Local political party voting context moderates public school principals' levels of racial/ethnic discrimination." (Revise and resubmit at Journal of Race, Ethnicity, and Politics.) Discrimination

5. Charles Crabtree and Yujin Woo. "Accepting migrants as fellow citizens: Evidence from a survey experiment in Japan." (Revise and resubmit at Japanese Journal of Political Science.) East Asia Discrimination

6. Charles Crabtree, Will Elliott, John B. Holbein, and Jayanth Uppaluri. "What does the public really want in college admissions?" (Revise and resubmit at Nature Human Behavior.) Class & needs Discrimination

7. Charles Crabtree, John B. Holbein, and Kiyoteru Tsutsui. "Alphabetical ordering and the uneven distribution of authorship credits by authors' country of origin." (Revised and resubmitted at Journal of Informetrics.) Methods

Reject and Resubmit

(2 papers)

1. Charles Crabtree, S. Michael Gaddis, John B. Holbein. "How should researchers signal race in correspondence audits? Considering the validity of names and photographs." (Reject and resubmit at Journal of Politics.) Methods Discrimination

2. Charles Crabtree and John B. Holbein. "Attention-check failure as a survey-level diagnostic of human participation in online surveys." (Reject and resubmit at Proceedings of the National Academy of Sciences.) Methods AI

Under Review

(20 papers)

1. S. Michael Gaddis, A. Nicole Kreisberg, and Charles Crabtree. "Assessing immigrant generational status from names: Evidence for experiments examining racial/ethnic and immigrant discrimination." Methods Discrimination

2. S. Michael Gaddis, Charles Crabtree, John B. Holbein, and Steven Pfaff. "When access isn't equal: Racial discrimination and resource need in U.S. schools." Discrimination Class & needs

3. S. Michael Gaddis, Edvard Nergård Larsen, Charles Crabtree, and John B. Holbein. "Discrimination against Black and Hispanic Americans is highest in hiring and housing contexts: A meta-analysis of correspondence audits." Methods

4. Charles Crabtree, Trevor Incerti, Rieko Kage, Frances Rosenbluth, Seiki Tanaka, Hikaru Yamagishi. "Sexual harassment in Japan: Willingness to pay for best practices." Methods

5. Akira Igarashi, Charles Crabtree, and Yoshikuni Ono. "Beyond language proficiency: Understanding the role of national identification in shaping attitudes toward immigrants." Discrimination East Asia

6. Helen V. Milner, Duy Trinh, Kiyoteru Tsutsui, and Charles Crabtree. "Globalization and the great divergence in populist attitudes." Populism

7. Jayanth V. Uppaluri and Charles Crabtree. "Who deserves what? Disability policy and public opinion." Disability

8. Charles Crabtree, Kostanca Dhima, and Sona Golder. "Increasing the social and scientific returns of audit studies." Methods Discrimination

9. Charles Crabtree and John B. Holbein. "AI's democratizing potential in higher education." AI Teaching

10. Margarita Solntseva and Charles Crabtree. "Attention to women's rights in NGO press releases, 1996–2018: A curated, coded dataset of organizational attention to women and violence against women." Human rights Gender Methods

11. Charles Crabtree and Yujin Woo. "Public perceptions of return migrants in ethno-cultural East Asia: Evidence from survey experiments in China, South Korea, and Taiwan." East Asia Discrimination

12. Peter Chai and Charles Crabtree. "Japan's multiparty turn and the politics of exclusion: Gender, immigration, and the rise of Sanseito." East Asia Populism Gender

13. Charles Crabtree, John B. Holbein, Cecilia Hyunjung Mo, and Surili Sheth. "Do museums highlighting the experiences of minorities persuade visitors? Reducing biases against Asian Americans." Discrimination

14. Charles Crabtree, Amanda Graham, Mikhail Gronas, and Ainsley Morse. "Learning positionality: Insights from field-based political science education." Teaching

15. Charles Crabtree. "Using Notion as a portable course hub and syllabus platform." Teaching

16. Charles Crabtree. "Watching, noticing, and counting: Using YouTube gaming videos to build social inquiry skills in elementary classrooms." Teaching

17. Peter Chai and Charles Crabtree. "High awareness, low uptake? Generative AI and the social patterning of adoption in Japan." AI East Asia

18. Charles Crabtree, John B. Holbein, and Bart Bonikowski. "Attention checks measure more than attention: Comparing class bias across survey quality indicators." Methods Class & needs

19. Charles Crabtree, John B. Holbein, and S. Michael Gaddis. "Shifting paradigms: Nine decades of identity and discrimination scholarship in academic research." Discrimination Methods

20. Charles Crabtree and John B. Holbein. "Attention-check failure as a diagnostic of human participation." Methods AI

Books in Progress

(2 books)

1. Charles Crabtree. Explaining Discrimination: An Experimental Approach. Under contract with Cambridge University Press, Cambridge Elements Series. Discrimination Methods

2. Kiyoteru Tsutsui and Charles Crabtree. Human Rights in Japan. Human rights East Asia

Interested in collaborating? I'm looking for research partners on class discrimination, fundamental needs, and methodological innovation.

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