The standard random-effects model in meta-analysis assumes that the amount of heterogeneity is homoscedastic. This assumption may not be true. I derived and examined various tests for heteroscedastic heterogeneity. See osf.io/cavhy for a preprint describing these methods. #MetaAnalysis #RStats

Hier der Artikel von Astrid Kirchhof und @jenniferhenke.bsky.social nochmal als Link! www.faz.net/aktuell/karr... #PDprekär #IchBinHanna

New paper out now! We (w/ @rmcelreath.bsky.social and @gregork.bsky.social) start from the observation that among adolescents in Leipzig, the gender gap in life satisfaction has doubled over time and ask: why?> link.springer.com/article/10.1...

Für den Bildungsbericht 2026 hat das LIfBi Bildungsverläufe, Kompetenzentwicklung & Erträge analysiert. Ausgewählte Befunde stellen wir in den nächsten Tagen vor. Heute: Der erste Schulabschluss prägt den weiteren Weg stark, aber er bestimmt ihn nicht. 🔗 www.bildungsbericht.de/de/bildungsb...

A big thank you to Prof. Claudia Buchmann (The Ohio State University) for today’s insightful LIfBi Lecture,“Boys Falling Behind: The Causes and Consequences of Gender Gaps in Education.” We greatly appreciated the inspiring discussion and exchange with colleagues and guests at LIfBi!

We are happy to announce our new ESRA Special Interest Groups (SIGs): 📊Multi-Source Statistics (chairs: Camilla Salvatore & @angelomoretti.bsky.social) 🤖Artificial Intelligence in Survey Research (chairs: Liam Wright et al.) Want to join? See here: www.europeansurveyresearch.org/esra-special...

Postdoc position @unimarburg.bsky.social in the project: "Bridging the Gap Between Verbal Psychological Theories & Formal Statistical Modeling with Large Language Models" (funded by @volkswagenstiftung.de) 📅Start: 01.10.2026 |⏳3 years 🔗 Job posting: uni-marburg.de/78NrWT Thanks for sharing!

We are thrilled to announce that the #ESRA27 call for sessions is now open! We invite all interested researchers to submit an abstract for an ESRA conference session by the end of August. More info here: www.europeansurveyresearch.org/conference/p...

Austin et al. (2026) advocated for AI in hypothesis-driven scale validation research. In this preprint, led by @wchiggins.bsky.social, we (@malte.the100.ci @bethclarke.bsky.social) sketch out several weaknesses in this paper, and offer recommendations for avoiding them. osf.io/preprints/ps... 1/🧵

New preprint: "A Framework for Reproducible AI-Assisted Research in the Social and Behavioral Sciences" osf.io/preprints/ps... #reproducibility #metascience #openscience

So, Nature retracted a much cited meta-analysis on "AI in education" because it had terrible methodology today. Unfortunately, it had been around for some months persuading people that AI in education had proven positive effects. Instead, read this paper […]

I know a lot of you folks just love lavaan, so here’s the lavaan job you’ve all been waiting for!

"Rentenexperte Axel Börsch-Supan: Auf die Frage, ob es sich um »Diebstahl auf Kosten der Solidargemeinschaft der Versicherten« handelt, antwortet der Ökonom kurz angebunden mit einem »Ja«. " www.spiegel.de/wirtschaft/s...

Two simulation studies in this paper show that doubly robust methods for causal inference—especially regression weighted by inverse propensity scores—are more robust to model misspecification than traditional regression across many scenarios. link.springer.com/article/10.3...

Na, das bringt das Land bestimmt nach vorne! Die drittgrößte Wirtschaft der Welt sagt ihren Beschäftigten: Fuck you! Wir sollten auch noch die Kündigungsfristen für Wohnungen auf drei Tage herabsetzen und die gesetzlichen Krankenversicherungen ganz abschaffen, wie in den USA. Dann wird alles gut!

This is really big (if it works!)—a big limitation for the use of R in simulation up to this point has been memory bloat. I’ve had to turn off parallel processing/reduce the number of workers many times in my {targets} workflows due to OOM errors. Hopefully this will solve that problem #RStats

New systematic review of three decades of educational research using data from the German National Educational Panel Study (NEPS) @lifbi.bsky.social in Educational Research Review (with Tanja Kutscher and @mariesengewald.bsky.social): doi.org/10.1016/j.ed... (open access)

Current status of the Strait of Hormuz dispute

New preprint out today (osf.io/preprints/ps...). We tested whether AI agents are actually infiltrating online surveys. Spoiler alert: they aren't Thread 🧵 [1/9]

📣 We're excited that the program for this year’s #GESISfallseminar in Computational Social Science is out & registration is now open! 🗓️ 31 Aug – 29 Sep 2026 📍 GESIS Mannheim or online More info at gesis.org/fallseminar. Full program & registration at t1p.de/FallSeminar2026-Program. @gesis.org

Okay guys they've gone behind the Moon so it's time for us to put our ape masks on This is going to be HILARIOUS

Das ist sehr krass: Laut des Anfang 2026 eingeführten Wehrpflichtgesetzes müssen alle Männer über 17 und unter 45 Jahren, die Deutschland länger als drei Monate verlassen wollen, dafür eine Erlaubnis bei der Bundeswehr einholen. WOW. Einfach so Bewegungsfreiheit massiv eingeschränkt. 1/

This shocked me

Survey people of BlueSky! Submit your papers to the @surveypractice.bsky.social Special Issue on Survey Costs by June 1. Guest edited by myself, @jameswagner254.bsky.social, Jill DeMatteis, John Eltinge, Daifeng Han, Chris Jackson, and Eric Rancourt! www.surveypractice.org/post/3724-20...

🎉 Die GEBF hat heute wieder den „GEBF-Preis für die Förderung der Interdisziplinarität in der Bildungsforschung“ verliehen. Die Auszeichnung wurde stellvertretend für das gesamte Netzwerk des NEPS an die Erweiterte Leitung des NEPS vergeben. ✨Wir freuen uns sehr! 📸 Sebastian Kissel

“we are trapping 21st-century minds inside 19th-century academic hierarchies.” This essay gets a lot right about problems with German science. I would add that the hierarchies and precarious contracts lead also to systemic abuse and scientific misconduct. open.substack.com/pub/realimag...

What I thought was a joke is real: you can now bet on German train delays. bahn.bet

Wir suchen 🔜 ab 01.06.2026 🕑 in Vollzeit (max. E13 TV-L, 100%) 📅 Bewerbungsschluss: 15.03.2026 👉https://jobs.lifbi.de/Postdoc-wmd-in-der-Abteilung-1-Schwerpunkt-sozio-emotional-de-j1077.html

Advances in Statistical Analysis has a call for papers on the role of multiverse analysis in statistical modelling and applications: link.springer.com/journal/1018... Deadline is May 1st, so still plenty of time to put something together!>

First post of the year, new paper out today: we present possibly the biggest case of systematic Measurement Schmeasurement in tech use. It seems that most studies on gaming (videogame) addiction/disorder haven't measured gaming after all. This research took years, so long 🧵 doi.org/10.1098/rsos...

I had not heard of a "mode effect" until @georgiatomova.bsky.social invited me to be part of this paper. If you've not heard of them either, I'm thrilled to share our introductory paper (with DAGs!) in @amjepi.bsky.social Turns out they're really important for anyone using survey data!

1/9 New blog is live! This is part 2 of a series—last time we looked at the Dunning-Kruger effect, now we are digging in to Implicit vs Explicit attitudes and the Implicit Association Test. To start, of course we need a good meme... haines-lab.com/post/part-2-...

I genuinely had no idea #rstats technically has a module system. my_module <- new.env() source("helpers.R", local = my_module) my_module$add(1, 2)

"in particular mice methods tend to have the best performance. Despite their growing popularity, deep learning-based joint imputation methods, such as miwae, gain, miracle, and remasker consistently underperformed in our analysis." #statistics #statsky #academicsky #skystats

Excited to share a new call for papers for a special issue in Psychometrika focused on Data Intensive Methods in Psychometrics that I'll be guest editing with @kyliegorney.bsky.social, @jmbh.bsky.social, @leonievogelsmeier.bsky.social, and Ben Domingue: www.psychometricsociety.org/post/call-sp...

For this week's #TidyTuesday, I visualized James Bond's drinking habits across the 12 novels using a waffle chart, based on the 2013 study "Were James Bond's drinks shaken because of alcohol induced tremor?" Code: github.com/gkaramanis/t... #RStats #dataviz

#OpenScience #ResearchIntegrity #AcademicPublishing Preprint: Nießen, D., Poppa, C., Daikeler, J., Silber, H., Weiß, B., & Richter, D. (2025). Actor-driven risk factors of publication bias: Opening the file drawer of two probabilistic panel surveys. PsyArXiv. doi.org/10.31234/osf...#OpenScience

Reminder>> Comparing Video-Based and Face-to-Face #Psychotherapy: A Systematic Review and Multi-Level Meta-Analysis across Mental Disorders (preprint) #openscience #PeerReviewMe #PlanP

“104 meta-analyses (86%) were fully reproducible, seven (6%) were not fully reproducible, and 10 (8%) had insufficient data available to attempt reproduction. ” bmjmedicine.bmj.com/content/4/1/...

Got a great paper on how AI is reshaping public opinion research? Submit it to POQ's special issue on Artificial Intelligence and the Future of Survey Research! Papers are being reviewed and accepted on a rolling basis starting now – full details here: s3-us-west-2.amazonaws.com/clarivate-sc...

Hidden variables in your data? 🕵️‍♀️ Find them in @tgnambs.bsky.social’s #GESISworkshop on structural equation modeling! Build a solid #SEM foundation — from measurement models to mediation, moderation, invariance, and longitudinal SEMs, hands-on in R with #lavaan. Info ➡️ t1p.de/Intro-SEM26

*Introduction to Structural Equation Modeling* by @tgnambs.bsky.social 🗓️ 04 – 06 March 2026 🏢 Online 🌐 t1p.de/Intro-SEM26

Needed - larger samples, more realism about (the lack of) heterogeneous treatment effects: -"less than a third of proposed hypotheses were supported... the largest predictor of positive exp. results was sample size" -"moderation hypotheses were rarely significant" academic.oup.com/poq/advance-...

New chart from Mike Males using MTF and Pew Research data finds that trends in teen social media and smartphone use are unrelated to teen loneliness (which hasn't changed much over the years anyway aside from an unexplained dip in the 2000s).

new paper by Sean Westwood: With current technology, it is impossible to tell whether survey respondents are real or bots. Among other things, makes it easy for bad actors to manipulate outcomes. No good news here for the future of online-based survey research

Announcement: I am excited to be co-editing (with Li Cai) an upcoming Special Issue of the Journal of Mathematical Psychology on "Advances in Statistical Model Evaluation." Proposals due Feb 1. Details: www.sciencedirect.com/special-issu... Please repost! #quantpsych #mathpsych #philsci #statsky

Mittwoch! Wir sprechen diese Woche über die Geschwister Sigmund Freuds, und deren systematische Entrechtung durch das NS-Regime. https://www.geschichte.fm/archiv/gag529/

You don't want to miss the next @srma-sig.bsky.social webinar on "A meta-review on the methodological quality of education intervention meta-analyses" featuring work by #MartaPellegrini, @terripigott.bsky.social and colleagues! @aeraedresearch.bsky.social #MetaAnalysis #SystematicReview