Our new paper is out today in @pnasnexus.org with colleagues at Yale (@matthewshu.com, Danny Karell, @keitarookura.bsky.social)

We wanted to understand how using AI-generated summaries to learn about history influenced attitudes compared to existing resources like Wikipedia. 1/4

highly recommend this paper. the experimental design manipulates how much subjects are monitored; when asked, yes treated subjects feel more monitored.

Do they later give different responses on possibly sensitive topics? no they don't.

Call for Proposals: Data Collection for Replication+Novel Political Science Survey Experiments Alexander Coppock and Mary McGrath January 27, 2026 We invite proposals for a survey experiment replication+novel design competition. Se- lected replication+novel design survey experiments will be conducted on large samples of American respondents, quota sampled to match U.S. Census margins and filtered for quality and attention by the survey sample provider Rep Data (repdata.com). Each proposal consists of two parts: (1) a replication study of an existing, previously published survey experiment, and (2) a novel experimental design on a topic of the authors’ choosing. The replication studies and reanalyses of the existing studies will be combined into a meta-paper to be co-authored by all authors of accepted proposals along with the princi- pal investigators (Coppock and McGrath). As a condition for acceptance, authors commit to sharing the data and producing a write-up of the findings from their novel design for submission to a scholarly journal, and public posting of a working paper pre-publication.

🎺 Call for proposals 🎺

1️⃣ replicate an existing experiment
2️⃣ run a novel experiment

on repdata.com

3️⃣ coauthor with Mary McGrath and me to meta-analyze the replications and existing studies
4️⃣ publish your study

details: alexandercoppock.com/replication_...
applications open Feb 1

please repost!

What are Americans’ perceptions of immigrants’ politics? How do beliefs about whether newcomers are future allies or adversaries shape immigration attitudes? A new #AJS article shows that perceived partisan (mis)alignment powerfully informs US public opinion on immigration.

Will do a thread another time!

Great to see my paper, "Red and Blue Immigrants: Political (Mis)Alignment, Immigration Attitudes, and the Boundaries of American National Inclusion," is now available! Link below. www.journals.uchicago.edu/doi/10.1086/...

Our findings suggest that different modes of measurement may yield differing evidence of polarization and consensus over U.S. national membership. Moreover, debates over Americanness may reflect not just competing values, but also disputes over who best embodies shared national ideals.

Surprisingly, these understandings of Americanness are only modestly associated with respondents’ partisan identities. That is, Democrats and Republicans overlap far more than expected - challenging the idea that they hold fundamentally opposing views of Americanness.

We find a majority of Americans define U.S. national membership using both ethnocultural criteria (e.g., being White) and civic expectations (e.g., embracing July 4th). Others adhere to more commonly familiar definitions (e.g., “exclusive” and “inclusive” conceptions of Americanness).

How do ordinary Americans define the boundaries of U.S. national membership? In this working paper (w/ @sakeefkarim.bsky.social), we combine conjoint data with latent class regressions to examine how Americans intuitively judge who is truly American.

osf.io/preprints/so...