Sebastián Valenzuela

One week left to submit your paper to this SI of POQ. See 👇 for more information:

Advancing the Study of Political Misinformation Across Countries and Platforms—Introduction to the Special Issue - Edda Humprecht, Sebastián Valenzuela, Frank Esser, Edson Tandoc, 2025 The global spread of political misinformation poses serious challenges to democracies, eroding trust and distorting public discourse. However, research has larg...

💫 New Open Access Special Issue in IJPP!
Advancing the Study of Political Misinformation Across Countries and Platforms
The SI explores how misinfo spreads, is perceived & countered across political systems, info environments & platforms.
Read the intro: journals.sagepub.com/doi/10.1177/...

Figure shows title and abstract of the paper

New from @milenionudos.bsky.social 📢

Using surveys from @reutersinstitute.bsky.social, we examine how large-scale disruptions like COVID-19 alter information repertoires.

TL;DR: Despite drastic changes to people's routines, news media use remained strikingly stable.

🔗 doi.org/10.1080/1461... (OA)

Call for Submissions to Public Opinion Quarterly’s 2026 Special Issue “Advancing Public Opinion Research Across Countries and Contexts” Submission Deadline: 18 May 2025

🚨 Call for Papers🚨
Are you researching public opinion across countries & contexts? Submit to the Public Opinion Quarterly special issue I’m co-editing with Hernando Rojas & Ting Chen. Let's advance nuanced, cross-contextual insights! 🌍
📅 Deadline: May 18, 2025
🔗 CFP: academic.oup.com/poq/pages/ad...

Great opportunity for fielding a pre-post study on the spread of junk content on Meta platforms... oh, wait. We don't need such study. We know what will happen. Just look at Elon's X.

Lots of food for thought in these essays. Please read, comment, and share.

The debate on whether misinformation matters is a good reminder that, in science, absence of evidence ≠ evidence of absence.

📣CALL FOR APPLICATIONS:
APSA & ICA's PolComm Divisions are looking for a new...
(1) Webmaster 💻 &
(2) Social Media Officer🤳!
⏳Deadline: Friday, 10 January 2025.
Full Call here:
politicalcommunication.org/wp-content/u...

Are you doing research on public opinion across countries and contexts? Then, consider submitting an article to the 2026 special issue of @poqjournal.bsky.social, that I'm guest editing with Hernando Rojas and Ting Chen.

Full CFP: s3-us-west-2.amazonaws.com/clarivate-sc...

Deadline: May 18, 2025.

Event Announcement - Trust and Resilience in the Global Information Environment: IPIE to Hold Expert Briefing during UN General Assembly

Excited to share the results from the 2024 Expert Survey on the Global Information Environment tomorrow for #IPIE's #UNGA program.

🗓️9/24 | 🕰️8:30-1:00 |📍CUNY Elebash Hall

Join Safiya Noble, Phil Howard, Wendy Chun, and many others for an for insightful discussion.

www.ipie.info/news/ipie-tr...

🌍 AI audits are critical because they help us understand whether AI systems are delivering the promised outcomes or causing unforeseen impacts. But the audit ecosystem is fragmented. This lit review is key to making sense of the different approaches.

📢New ipie.info report 📢"Global Approaches to Auditing Artificial Intelligence: A Literature Review," the first publication from the IPIE’s Scientific Panel on Global Standards for AI Audits. Now available at: ipie.info/research/glo...

New Preprint: “(Don’t) Stop Believing”
Are conservatives generally more vulnerable to #misinformation?
Our new study suggests: Bias occurs on both sides – but in different forms (higher confirmation bias on the right, higher disconfirmation on the left). osf.io/84c36
Here's a thread ⏬

#𝗝𝗠𝗖𝗤_𝟭𝟬𝟬
Read what @sebavalenz.bsky.social, Ingrid Bachmann, Regina Lawrence & Homero Gil de Zúñiga had to say about empirical articles revolving around politics and media published by JMCQ in its 100 years. This article is part of our 𝗖𝗲𝗻𝘁𝗲𝗻𝗻𝗶𝗮𝗹 𝗦𝗽𝗲𝗰𝗶𝗮𝗹 𝗜𝘀𝘀𝘂𝗲! journals.sagepub.com/doi/full/10....

Very happy to see that @jmcquarterly.bsky.social's centennial issue is finally out, journals.sagepub.com/toc/JMQ/curr... Delighted to have contributed with a piece on 100 years of polcomm in JMCQ: doi.org/10.1177/1077... Congratulations to all the editors, reviewers and authors

Awesome design, yes. Important findings, too. Just impressed that not a single article from communication sciences is cited. Whole theories in comm, most notably cultivation, predict a causal-effect relationship between crime TV shows and crime attitudes and behavior. #academicsilos

various climate records broken depicted in charts a. Antarctic sea ice extent (10 km²: rel. to 1991-2023 mean) b. 20 Global sea ice extent (10 km²; rel. to 1991-2023 mean) 0- C. North Atlantic ocean sea surface temp. anomaly ("C; rel. to 1991-2023 mean) d. World ocean sea surface temp. anomaly ("C; rel. to 1991-2023 mean: 60S-60N) 1.0- 0.50- 0.5 0.25 0.0 0.00 -0.5- -0.25- -0.50- -1.04 World surface temp. ("C; 2 m height; rel. to 1850-1900 mean) f. Cumulative area burned in Canada (million hectares) 1.5- 15 10 1.0- 0.5- 0.0+ Jan 01 Apr 01 Jul 01 Oct 01 Year 50 Jan 01 2000 2010 2020 Apr 01 Jul 01 Oct 01 2023

The 2023 state of the climate report: it's fucked

academic.oup.com/bioscience/a...