Michael V. Reiss
@mvreiss.bsky.social
290 followers 170 following 21 posts
PostDoc Leibniz Institute for Media Research | HBI, Hamburg. Previously: University of Zurich & LSE. 🔎 Generative AI | Political Communication & News Consumption | CSS
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Reposted by Michael V. Reiss
rasmuskleis.bsky.social
How do people think different sectors’ use of generative AI will change their experience of interacting with them?

More optimists than pessimists for e.g. science and search engines, but more pessimists than optimists for news media, government, and – especially – politicians 1/3
Reposted by Michael V. Reiss
sebstier.bsky.social
📢 We're hiring a Doctoral Student in Research Software Engineering for Digital Behavioral Data!
Work at the intersection of computer science and social science, develop innovative tools, and pursue your doctoral degree with us.

👉 Apply here: www.gesis.org/en/institute...
Details
GESIS Leibniz Institut für Sozialwissenschaften
www.gesis.org
mvreiss.bsky.social
Oh wie fantastisch Theresa, willkommen in Hamburg und Gratulation! Freue mich, wenn man sich dann vielleicht häufiger sieht 😊😊 (liebe die Mensen hier)
mvreiss.bsky.social
So important!

One does not simply use ChatGPT for everything
Reposted by Michael V. Reiss
compcommlab.bsky.social
Proud to congratulate you, @azadekakavand.bsky.social, on your PhD defense –
“Technology Affordances, Social Media Platforms & the Networked Far Right.”
A remarkable achievement that combines years of hard work & building of skills that you now use at @bredowinstitut.bsky.social. Missing u already🥳
Picture of the committee, from left to right. Annie, Nicola, Azade, Eva, and Hajo.
Reposted by Michael V. Reiss
florianaigner.at
Es gibt kaum einen Bereich, in dem Umverteilung von unten nach oben so unverblümt sichtbar wird wie im Bereich AI: Alle tragen etwas dazu bei, die Trainingsdaten sind von der gesamten Menschheit gemeinsam erstellt worden, den Profit dieser kollektiven Arbeit ernten dann ganz wenige.
Reposted by Michael V. Reiss
fgkommpol.bsky.social
HAMBURG CALLING - EINREICHUNGEN MÖGLICH

Ab sofort ist das Conftool für unsere FG-Tagung 2026 offen: www.conftool.net/polkomm26/

4.-6.2.26, Hamburg

Tagungsthema: Demokratische Resilienz als Aufgabe für die politische Kommunikation in einer instabilen Welt

Alle Infos unter: uhh.de/wiso-polkomm26
Seite 1 des Calls for Papers, vollständig zu finden auf der Tagungs-Website Seite 2 des Calls for Papers, vollständig zu finden auf der Tagungs-Website. Seite 3 des Calls for Papers, vollständig zu finden auf der Tagungs-Website. Seite 4 des Calls for Papers, vollständig zu finden auf der Tagungs-Website.
Reposted by Michael V. Reiss
gesis.org
#Call #GESISPanel

Collect Your Own Linked #WebTracking and #SurveyData with the GESIS Panel.dbd Digital Behavioral Data Sample
Panelists participate in repeated surveys and digital behavioral data collections such as web tracking, where participants' web browsing behavior is recorded.
Reposted by Michael V. Reiss
dingdingpeng.the100.ci
Ever stared at a table of regression coefficients & wondered what you're doing with your life?

Very excited to share this gentle introduction to another way of making sense of statistical models (w @vincentab.bsky.social)
Preprint: doi.org/10.31234/osf...
Website: j-rohrer.github.io/marginal-psy...
Models as Prediction Machines: How to Convert Confusing Coefficients into Clear Quantities

Abstract
Psychological researchers usually make sense of regression models by interpreting coefficient estimates directly. This works well enough for simple linear models, but is more challenging for more complex models with, for example, categorical variables, interactions, non-linearities, and hierarchical structures. Here, we introduce an alternative approach to making sense of statistical models. The central idea is to abstract away from the mechanics of estimation, and to treat models as “counterfactual prediction machines,” which are subsequently queried to estimate quantities and conduct tests that matter substantively. This workflow is model-agnostic; it can be applied in a consistent fashion to draw causal or descriptive inference from a wide range of models. We illustrate how to implement this workflow with the marginaleffects package, which supports over 100 different classes of models in R and Python, and present two worked examples. These examples show how the workflow can be applied across designs (e.g., observational study, randomized experiment) to answer different research questions (e.g., associations, causal effects, effect heterogeneity) while facing various challenges (e.g., controlling for confounders in a flexible manner, modelling ordinal outcomes, and interpreting non-linear models).
Figure illustrating model predictions. On the X-axis the predictor, annual gross income in Euro. On the Y-axis the outcome, predicted life satisfaction. A solid line marks the curve of predictions on which individual data points are marked as model-implied outcomes at incomes of interest. Comparing two such predictions gives us a comparison. We can also fit a tangent to the line of predictions, which illustrates the slope at any given point of the curve. A figure illustrating various ways to include age as a predictor in a model. On the x-axis age (predictor), on the y-axis the outcome (model-implied importance of friends, including confidence intervals).

Illustrated are 
1. age as a categorical predictor, resultings in the predictions bouncing around a lot with wide confidence intervals
2. age as a linear predictor, which forces a straight line through the data points that has a very tight confidence band and
3. age splines, which lies somewhere in between as it smoothly follows the data but has more uncertainty than the straight line.
Reposted by Michael V. Reiss
pettertornberg.com
🚨 PhD Position at the University of Amsterdam 🚨

Join my team as a computer scientist / computational social scientist working on LLMs, social media, and politics.

We offer freedom, impact, and an inspiring environment at one of Europe's leading universities.

🔗 werkenbij.uva.nl/en/vacancies...
Vacancy — PhD Position on Improving Social Media Using Large Language Models
The Institute for Logic, Language and Computation (ILLC) at the University of Amsterdam is inviting applications for a fully funded PhD position in the NWO VIDI project "Improving Social Media Using L...
werkenbij.uva.nl
Reposted by Michael V. Reiss
jingyuanyu.bsky.social
My friend and colleague @maxschindler.bsky.social has started a TikTok channel talking about social and communication science (in German).

Follow him👇science comm matters!

www.tiktok.com/@maksimumsci...
Reposted by Michael V. Reiss
cbpuschmann.bsky.social
Why do people search for individual politicians? Because they (don't) like them. In a new paper we find sympathy/antipathy to be important predictors of political information seeking. We also find searches for female politicians more often concerned with appearance & family. doi.org/10.1177/1461...
Reposted by Michael V. Reiss
epssnet.bsky.social
🚨 Big News for European Political Science 🚨

We’re thrilled to announce the launch of the European Political Science Society (EPSS): a new, member-led, not-for-profit association built to support our scholarly community.

🔗 epssnet.org

Here’s a thread with everything you need to know.

🧵
Reposted by Michael V. Reiss
hendrikmeyer.bsky.social
New publication out in Social Science Computer Review, with @mikefarjam.bsky.social (lead) and Meike Lohkamp:
“A Practical Guide and Case Study on How to Instruct LLMs for Automated Coding During Content Analysis.”
journals.sagepub.com/doi/10.1177/...

A thread 🧵:
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
journals.sagepub.com
Reposted by Michael V. Reiss
icacm.bsky.social
And last, but certainly not least, huge congratulations to Dr. Anke Stoll who received the Best Dissertation Award for her impressive dissertation “Machine learning for automated content analysis of incivility in online discussion” #ICA25

Congratulations!!! 🎉🎉🎉
Reposted by Michael V. Reiss
bredowinstitut.bsky.social
🎉 Wir feiern 75 Jahre Hans-Bredow-Institut #HBI75!
... jetzt auch auf BlueSky! #firstpost
🎂 75 Jahre Medienforschung – das bedeutet 75 Jahre Forschung über medienvermittelte öffentliche Kommunikation, interdisziplinär & international vernetzt.
🙏 Wir sagen Danke und freuen uns auf alles, was kommt!
Reposted by Michael V. Reiss
claesdevreese.bsky.social
Previous studies showed how Republicans share more misinformation. This was disputed by some, blaming fact-checking biases.

Enter Community Notes. Guess what:

"2.3 times more posts by Republicans are flagged as misleading compared to posts by Democrats."

www.pnas.org/doi/10.1073/...
Republicans are flagged more often than Democrats for sharing misinformation on X’s Community Notes | PNAS
We use crowd-sourced assessments from X’s Community Notes program to examine whether there are partisan differences in the sharing of misleading in...
www.pnas.org
Reposted by Michael V. Reiss
ernesto-deleon.com
A huge congratulations to @nicolaiberk.bsky.social for winning this year's 2025 Kaid Sanders @polcomm.bsky.social article of the year award! #ica25

Having known Nico for a long time, I have seen the gigantic effort that went into this paper and can say it is incredibly well deserved!
Reposted by Michael V. Reiss
philippmendoza.com
This is big and super harmful.
YouTube increased the threshold for takedowns: videos can now contain 50% (formerly 25%) misinformation or hate and still stay up if deemed “public interest.”

www.nytimes.com/2025/06/09/t...
YouTube Loosens Rules Guiding the Moderation of Videos
www.nytimes.com
Reposted by Michael V. Reiss
chiaravalli.bsky.social
🚨 Join Our Team

We're looking for a PhD / Post-doc in Political Communication with possibility of joining a project on how feelings of being “left behind” shape political info use, focusing on social identity and identity threats.

Start: September 1 or by agreement
Duration: 3 years

Apply now! 🔬✨
mvreiss.bsky.social
10 days left to submit your abstract 😊
mvreiss.bsky.social
📣 CfA on Public Discourses on AI

We're guest-editing a SI of the International Journal of Press/Politics on "Global Myth and Magic around AI", focusing on timely issue of public discourses on AI. Deadline is June 15. Happy to answer any questions. Details: journals.sagepub.com/page/hij/glo... #IJPP