Jeff Ziegler

@jeffreymziegler.bsky.social

Assistant Professor in Political Science & Data Science at Trinity College Dublin, Director of the Applied Social Data Science (ASDS) Programme. Former Post-Doc at QTM Emory, WUSTL PhD, UW-Madison alum & native. www.jeffreyziegler.org

“Just collect more data” is one of the most common responses to uncertainty in quantitative research. But in a lot of social science, that advice is impossible—or even misleading. Our new working paper asks: when has a study reached its information limit? Check it out here: osf.io/preprints/so...

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🚨(Software) Update: In my PhD, I had a side project to fix an annoying problem: when you ask 5 people to label the same thing, you often get different answers. But in ML (and lots of other analyses), you still need a single aggregated answer. Using the majority vote is easy–but often wrong. 1/N

GitHub - dirkhovy/MACE: Multi-Annotator Competence Estimation tool

Multi-Annotator Competence Estimation tool. Contribute to dirkhovy/MACE development by creating an account on GitHub.

github.com

Many think LLM-simulated participants can transform behavioral science. But there's been a lack of accessible discussion of what it means to validate LLMs for behavioral scientists. Under what conditions can we trust LLMs to learn about human parameters? Our paper maps the validation landscape. 1/

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I am hiring a post-doctoral fellow (2 years) to work on all things political finance in Africa. There are no teaching obligations, and lots of opportunities for fieldwork. A PhD in Political Science is a requirement. Please spread the word! Happy to answer questions - send them to my LSE email.

LSE Department of Government@lsegovernment.bsky.social · 8mo ago

🚨We're #hiring! We're looking for a #Research #Fellow to join our team. The successful candidate will be part of the research project "Political #Finance in #Africa" led by Associate Professor @sarahbrierley.bsky.social for 2 years. 🗓️Apply by Monday 12 January 👇🏽 jobs.lse.ac.uk/Vacancies/W/...

Lots of concern about ⬆️ of survey experiments as signal of “credible causal evidence”, but I’m genuinely curious: what’s the alternative if we study trends that happen rarely, are hard to measure, or lack data? Causality aside, seems like surveys and/or experiments are an incredibly useful tool?

Carolina Torreblanca@carotorreblanca.bsky.social · 9mo ago

New paper! @william-dinneen.bsky.social @guygrossman.bsky.social Yiqing Xu and I use GPT to code 91k articles from 174 polisci journals (2003–2023)and track research designs, transparency practices, and citations. How has the credibility revolution reshaped the discipline? doi.org/10.31235/osf... 🧵

handy little data hoarder tool i built and deployed for myself but others might find useful lalten.org/linkpull/ 1) academic or govt site with a bunch of hyperlinks 2) write a regex to grab all links matching a pattern in said url, copy and paste into file 3) download with wget or curl

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The new Comparative Constitutions Project website is now live! Developed by yours truly. We're also releasing version 5.0 of our Constitutional Chronology and Constitutional Characteristics datasets, updated through 2023. Explore and download: comparativeconstitutionsproject.org

Comparative Constitutions Project

Producing data about constitutions. Impacting the constitution-making process. Promoting peace, justice, and human development.

comparativeconstitutionsproject.org

testthat 3.3.0 out now! This is a massive release with tons of improvements including better failure messages, new expectations, improved snapshotting, new vignettes, and much much more: tidyverse.org/blog/2025/11... Post includes some thoughts on developing an #rstats package with Claude Code.

testthat 3.3.0

testthat 3.3.0 brings improved expectations with better error messages, new expectations for common testing patterns, and lifecycle changes including the removal of `local_mock()` and `with_mock()`. I...

tidyverse.org

Conference deadlines have habit of sneaking up. This is your friendly reminder that the call for applications is still open for PolMeth - Europe. Don’t let yourself suffer from FOMO, and come to Dublin this coming May!

Jeff Ziegler@jeffreymziegler.bsky.social · 10mo ago

Submit, submit! 🚨 Pleasant reminder to all, the 5th European PolMeth meeting will be 14-15 May 2026 at Trinity College Dublin 🇮🇪 Submissions close Nov. 15 ⚠️ You can find out more about the conference, including the submission form, here: polmeth.eu If you have any questions, please contact me 😀