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Frederik Aust

@frederikaust.com
1.5K followers 486 following 97 posts

Tenured researcher @ University of Cologne, formerly University of Amsterdam. STAR editor at Psychological Science. Bayesian statistics, mathematical models of cognition, computational reproducibility, R package development, and coffee. ☕️

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Reposted by Frederik Aust
Society for the Improvement of Psychological Science (SIPS) @improvingpsych.org · 25/09/2026
Support open-access research in psychological science – join the PsyArXiv Moderation team! 🧑‍🏫Moderator training is provided 🕰️Commitment: ~2 hours a month 📝Checking submissions for relevance, scope, and appropriate metadata 🌐Moderation work can be done asynchronously buff.ly/6TlgL7Q
buff.ly
Sign up to be a moderator for PsyArXiv
It is amazing that you are considering becoming a moderator. Moderation is a small job when there are plenty of moderators, which is why we are always on the lookout for people to join the team. We…
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Reposted by Frederik Aust
Institute for Replication @i4replication.bsky.social · 25/09/2026
Over the past two years, I4R partnered with Psychological Science (@psychscience.bsky.social) on a large reproducibility project. 67 independent teams reproduced 64 articles published in 2024–2025, about 44% of eligible papers. Paper: www.econstor.eu/bitstream/10... Here's what we learned 🧵
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Emil Hvitfeldt @emilhvitfeldt.bsky.social · 23/09/2026
I think I have cracked one of the final things that kept people in keynote over quarto revealjs slides. Introducing ✨️ quarto-revealjs-magic-move ✨️ emilhvitfeldt.com/post/quarto-... #quarto #slidecrafting
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Zurich Cognition Lab @cognition-zurich.bsky.social · 23/09/2026
Open Postdoc (80%) in our Lab @uzh-ch.bsky.social (PI: Klaus Oberauer) Topics are: Working memory, long-term memory, attention; experiments, individual differences, computational modeling. Start Dec 2026 to Feb 2027, until June 2030. Apply by Oct 15; Questions to: k.oberauer@psychologie.uzh.ch
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Micah G. Allen @micahgallen.com · 22/09/2026
So… we just found out that GPT sol can complete a complex online behavioral/cognitive study producing nearly indistinguishable behavior and subjective reports… right as we are about to launch. Is this doomsday for online cognitive testing?
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Josh de Leeuw @joshdeleeuw.bsky.social · 21/09/2026
DataPipe (pipe.jspsych.org) is ready for its post-OSF life. You can use it as before to save data from online experiments, but now the data can be sent to Zenodo, Google Drive, or a Dataverse instance. Existing OSF connections work until 11/16 I took this opportunity to do some major updates...
pipe.jspsych.org
DataPipe
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Benedek Kurdi @benedek.bsky.social · 17/09/2026
🚀 Project Implicit’s critical work continues! Our website remains fully operational 24/7, collecting data and launching new studies. We are finalizing a new organizational structure to carry our research and educational mission forward. Thank you to our global community. ➡️ implicit.harvard.edu
September 17, 2026
Project Implicit Continues its Critical Work
We are more excited than ever to not only continue but to expand the scientific collabora-tion at the heart of Project Implicit. With the non-profit that served as our operational home for two decades shutting down, a new organizational structure is being finalized to carry our research and educational mission forward.
In the meantime, the Project Implicit website (http://implicit.harvard.edu/) remains fully operational and continues to collect data 24/7. New studies, programs, and educational ef-forts are actively underway. We expect public data to remain available in perpetuity, and new data from 2026 will be released in January of next year.
We express our deep gratitude to everyone who has helped create, sustain, and grow Pro-ject Implicit. This includes the founders, members of the Board of Directors and the Scien-tific Advisory Board, staff members of the non-profit, international collaborators, and the students across dozens of labs tending to tasks big and small. We are also thankful to our generous donors who have answered our calls and supported our mission, and especially the millions of annual visitors who continue to honor us with their curiosity, time, and data.
We look forward to providing more details in the weeks ahead.
Jordan Axt, McGill University
Yoav Bar-Anan, Tel-Aviv University
Benedek Kurdi, University of Illinois
Calvin Lai, Rutgers University
Ryan Lei, Haverford College
Curtis Phills, University of Oregon
Kate Ratliff, University of Waterloo
Colin Tucker Smith, Wilfrid Laurier University
Jennifer Steele, York University
Heidi Vuletich, University of Denver
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Peter Ellis @freerangestats.info · 16/09/2026
Inspired by a @f2harrell.bsky.social comment, I did some #rstats simulations about how big a sample needs to be for the central limit theorem to kick in and the sample mean be normally distributed for inference purposes. Yes, with skewed data the answer is "lots". freerangestats.info/blog/2026/09...
Scatter plot with 8 facets, each showing a different distribution, and the actual coverage of a 95% confidence interval for the mean at different sample sizes. Most values are well below 95%.
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ArXiv Paperboy (Stat.ME+Econ.EM) @paperposterbot.bsky.social · 16/09/2026
arXiv📈🤖 Dangers of Bayesian analyses and how to address them By Greenland, Oke
In light of the US FDA announcement supporting the use of Bayesian methods in clinical trials, we present a nontechnical review of problems with Bayesian analyses and methods to address them. Our focus is on the well-known sensitivities of Bayesian results to biases embedded in their prior distributions. This vulnerability calls for special safety features, including detailed justification of informative priors based on empirical-research literature rather than on singular expert opinions. Crucially, the information contributed by priors should be realistic in light of actual background data rather than merely judged so by available experts. We illustrate our recommendations with using a textbook clinical-trial example which covered these points.
  We then use the example describe basic diagnostic procedures and safety recommendations for Bayesian analyses and their presentation. These include reference analyses which exclude informative priors, and justification for informative priors based on empirical-research literature rather than on philosophical arguments. We also critique some common priors that violate our realism requirements. One strategy to aid judgments about priors is to translate them into data to be added to the study data. The source of these prior data should be examined with the same critical attitude as the source of study data. We illustrate some simple summary methods for comparing prior and data information, including prior predictions of data, variance ratios, and their translation to effective sample sizes (ESS). Finally, we argue that Bayesian analyses should be treated as extensions or supplements to conventional analyses, rather than replace them, for that treatment puts prior construction and justification at the fore of the transition from frequentist to Bayesian analyses in teaching and practice.
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Reposted by Frederik Aust
Greg Wester @gwestr.me · 16/09/2026
LOL
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Vishnu Sreekumar @vishnusreekumar.bsky.social · 05/08/2026
📢 ***Call for papers at Psychological Science (APS)*** Dr Roni Porat and I are editing a special issue, "From Lab to Life: Psychological Science in the Real World.” Please see the detailed call here (www.psychologicalscience.org/publications...) and send us your best work!
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Brian Nosek @briannosek.bsky.social · 14/09/2026
I am sad to share that Project Implicit, my first non-profit and foundation of my career, is closing. The IAT website will continue, managed by the next generation of leaders in implicit bias research. Here's the statement I posted to LinkedIn. It didn't vibe right as a bsky thread.
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Terence Tao @teorth.bsky.social · 11/09/2026
A group of 25 Fields Medalists, including myself, have made a joint declaration on Math and AI: mathandai.org . We welcome additional signatories. See also this article in the Economist announcing the declaration: www.economist.com/science-and-...
mathandai.org
Declaration — Math and AI
Read the declaration and add your name.
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Tim Ricker @timricker.bsky.social · 11/09/2026
Looking for a new Editor in Chief at Cognitive Psychology: www.sciencedirect.com/journal/cogn...
sciencedirect.com
News - Cognitive Psychology | ScienceDirect.com by Elsevier
Read the latest articles of Cognitive Psychology at ScienceDirect.com, Elsevier’s leading platform of peer-reviewed scholarly literature
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Ruben C. Arslan @ruben.the100.ci · 11/09/2026
An interesting thing is happening to me at the moment. I have a standing bug bounty policy for my first authored scientific work. That means, I've committed to pay people who report bugs in my code, up to 750€ for severe errors. Since GPT-6 Astra came out, I'm now getting several bug reports daily.
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Lindsey Powell @lindseypowell.bsky.social · 09/09/2026
UCSD Psychology is hiring!! We’re seeking a new assistant professor colleague who studies high-level human cognition, broadly construed. Please share and/or apply! apol-recruit.ucsd.edu/JPF04646
apol-recruit.ucsd.edu
Assistant Professor in High-level Human Cognition
University of California, San Diego is hiring. Apply now!
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Aaron Fisher @aaronjfisher.bsky.social · 10/09/2026
Quant job in Berkeley Psych. Deadline on 9/29. aprecruit.berkeley.edu/JPF05480
aprecruit.berkeley.edu
Assistant Teaching Professor Quantitative Methods-Psychology
University of California, Berkeley is hiring. Apply now!
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Alex Holcombe @alexh.bsky.social · 03/09/2026
Great news! Some of us have been waiting a long time for major funders to not just shovel $ into the maws of the big publishers, and instead support the long tail of scholar-controlled journals that are run on a shoestring
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aaron bornstein @aaronbornstein.bsky.social · 03/09/2026
UC Irvine Cognitive Sciences is hiring! Focus on social cognition, broadly construed. Come be my colleague :) I am not on the search committee but happy to talk about the campus, environment, careers, etc any time. recruit.ap.uci.edu/JPF10411
recruit.ap.uci.edu
Assistant Professor - Cognitive Sciences
University of California, Irvine is hiring. Apply now!
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American Statistical Association History of Statistics @hos-asa.bsky.social · 02/09/2026
Frank Wilcoxon b #OTD 1892 (d 18 Nov 1965) ASA Fellow 1955. Best known for his nonparametric rank-sum and signed-rank tests. An enthusiastic cyclist, in his 70s he shifted to a Honda motorcycle to get to work at Florida State University campus
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simine vazire @simine.com · 28/08/2026
Psych Science (the journal) is broader than you might think! Do you do descriptive research? Or research w/ underrepresented populations or cultural frameworks? Or research on AI/LLMs for psych? Or research testing lab findings in the real world? We have a special issue for that!
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simine vazire @simine.com · 02/09/2026
Psych Science has retracted Ariely & Wertenbroch (2002). The second author requested the retraction. Both authors agreed to it. journals.sagepub.com/doi/full/10.... So grateful to @datacolada.bsky.social for these blog posts and the work behind them: datacolada.org/138 and datacolada.org/139 1/2
journals.sagepub.com
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
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Data Colada @datacolada.bsky.social · 02/09/2026
Colada[139] Artificial Deadlines Part 2 Evidence of fraud in the 25 year old gradesheet behind the key finding in an influential paper on deadlines and procrastination. datacolada.org/139
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Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 02/09/2026
I personally think anti-monopoly action is needed against the big publishers. I mean, academic publishing markets are not efficient! We have laws about this stuff already. But somehow I doubt any country is even thinking about it?
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Sam Gershman @gershbrain.bsky.social · 01/09/2026
If this makes you mad, submit your cognitive science research to @openmindjournal.bsky.social No APCs, no subscription fees. It's funded by university libraries, at low cost.
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Matt Makel @mattmakel.bsky.social · 31/08/2026
I made a mistake. And because of that mistake, I no longer have confidence that results that I reported in several research papers are an accurate reflection of replication rates. 1/
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Tom Hardwicke @tomhardwicke.bsky.social · 27/08/2026
3. From Lab to Life: Psychological Science in the Real World www.psychologicalscience.org/publications... 4. Centering Underrepresented Populations and Cultural Frameworks in Psychological Science: African and Global Perspectives www.psychologicalscience.org/publications...
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Tom Hardwicke @tomhardwicke.bsky.social · 27/08/2026
Send your best work to Psychological Science! Four special issue calls: 1. Descriptive Research in Psychological Science www.psychologicalscience.org/publications... 2. Advancing Psychological Science Using Large Language Models www.psychologicalscience.org/publications...
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Yihui Xie @yihui.org · 21/08/2026
Please help support Tomáš’s widow and young son. I was worried about them when I heard the sad news back in April, and I really appreciate that the R Foundation has set up this fund to help the family.
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Yihui Xie @yihui.org · 21/08/2026
I just came back from summer vacation, and would like to announce a tiny new R package I developed recently: {lt} yihui.org/en/2026/07/l...
yihui.org
The lt Package: Lightweight HTML Tables for R (and Beyond) - Yihui Xie | 谢益辉
Recently I have released a new package on CRAN: lt, short for lightweight tables (or less than). Its origin story is a small moment of shock. About two years ago a project required gt, so I ran &helli...
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Society for the Improvement of Psychological Science (SIPS) @improvingpsych.org · 15/08/2026
🥳Today, PsyArXiv – the community preprint server for psychology – turns 10! 🥳 Thank you to everyone who contributed to the server's growth, including volunteers who work behind the scenes to keep it running, preprint authors, and readers!
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PsyArXivBot @psyarxivbot.bsky.social · 14/08/2026
A Poisson Count Race as a Generative Bridge Between Logit and Probit Choice: osf.io/r36vs
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Neuroskeptic @neuroskeptic.bsky.social · 14/08/2026
In mice, hibernation causes the loss of more than 50% of all hippocampal synapses. But after recovery, memories are preserved and most of the 'lost' synapses grow back! www.science.org/doi/10.1126/... "Somehow, the synapse returned."
science.org
Artificial hibernation reveals synaptic engram architecture associated with memory retention
Memories leave lasting physical changes at the synaptic level. Although stable, larger spines are thought to support memory, the high turnover of dendritic spines and the drifting of neuronal represen...
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Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 13/08/2026
These ratio outcome variables are a plague in the sciences. If your analysis treats 1/2 and 10/20 as the same evidence, then you have discarded uncertainty in the outcome. Model what you measure, not what you construct. Use the denominator as an exposure instead.
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Frederik Aust @frederikaust.com · 14/08/2026
What to do when you have too many (PhD) projects on the go. www.nature.com/articles/d41...
nature.com
What to do when you have too many PhD projects on the go
By ruthlessly narrowing down his priorities, Zachary Sentell managed to publish several papers in the final year of his PhD and graduate on time.
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Frederik Aust @frederikaust.com · 14/08/2026
Here is the author's reply to the critique of the decine in disruptiveness paper. Zero-reference works appear to play an important role. Maybe I have never read a truly disruptive paper, but I don't think I have ever seen a zero-reference paper in psychology. www.nature.com/articles/s41...
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vincentholst.bsky.social @vincentholst.bsky.social · 13/08/2026
Instead of a decline in the disruptiveness of scientific and technological knowledge, the data mainly show an increasing metadata quality over time: relatively fewer papers with zero references due to database errors. 7/8
The decline in disruption (including zero reference papers, left panel) mirrors the relative decrease of zero reference papers which were wrongly counted as being maximally disruptive (right panel).
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vincentholst.bsky.social @vincentholst.bsky.social · 13/08/2026
In 2023, @nature.com published 'Papers and patents are becoming less disruptive over time', receiving world-wide media attention. Our Matters Arising, published after a 32 month delay (more on that soon), shows that the reported decline can largely be attributed to dataset artefacts. 🧵
The average CD_5 index per year for Web of Science. The original Park et al. decline (top curve) becomes essentially flat (bottom curve) when removing papers with CD_5=1. Those papers largely correspond to dataset artefacts.
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simine vazire @simine.com · 10/08/2026
Special issue at Psych Science on psychology research using LLMs Theoretical & methodological work welcome. Read the full call for important info about what we’re looking for! Submission deadline: 15 March 2027 (15 October 2026 for Registered Reports) www.psychologicalscience.org/publications...
psychologicalscience.org
Special Issue Call for Submissions: “Advancing Psychological Science Using Large Language Models”
Editors: Jamie Cummins and Ruben C. ArslanPsychological Science invites submissions for a special issue on psychological science involving large language models. We welcome theoretically and empirical...
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simine vazire @simine.com · 10/08/2026
Special issue at Psych Science on psychological science in the real world! Send us your best work looking at whether effects from the lab (or from theories) hold up in ecologically valid settings. Submission deadline: 15 January 2027 www.psychologicalscience.org/publications...
psychologicalscience.org
Special Issue Call for Submissions: “From Lab to Life: Psychological Science in the Real World”
Editors: Roni Porat and Vishnu SreekumarPsychological Science invites submissions presenting innovative research that brings psychological science “into the wild,” whether to strengthen its ecological...
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Association for Psychological Science @psychscience.bsky.social · 11/08/2026
Psychological Science invites submissions presenting innovative research that brings psychological science “into the wild.” #Psychology Submit full manuscripts by January 15, 2027. Questions? Ask the Editors: Roni Porat and @vishnusreekumar.bsky.social
psychologicalscience.org
Special Issue Call for Submissions: “From Lab to Life: Psychological Science in the Real World”
Editors: Roni Porat and Vishnu SreekumarPsychological Science invites submissions presenting innovative research that brings psychological science “into the wild,” whether to strengthen its ecological...
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Center for Open Science @cos.io · 11/08/2026
COS is announcing important changes to the Open Science Framework (OSF). OSF Projects—used for project collaboration, file mgmt, & storage—is being phased out as an active workspace over the next 6 months. This change does not affect persistence & accessibility of existing public projects. (🧵1/2)
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Brian Nosek @briannosek.bsky.social · 11/08/2026
Over the next several months, we will phase out some popular OSF features. These changes do not affect current public content, which remains safe and accessible. We have prepared support material to help users adapt. I am very sorry for the disruption to your work. Please read this post for details.
cos.io
OSF Changes | Center for Open Science
We are preparing substantial changes to OSF that will reduce its functionality, focus OSF on its unique strengths, and move toward an integrated model with complementary services. As part of that shif...
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Moritz Peter Fritschle @moritzfritschle.bsky.social · 24/07/2026
The euro banknotes seem to get a new look, and the @ecb.europa.eu has hosted a survey, asking which desing is the preferred one. I really like the stork on the 50€ banknote. surveys.ecb.europa.eu/10b/banknote...
Stork on a fifty euro banknotethree buildings with storks on a 50 € note
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Anne Scheel @annemscheel.bsky.social · 23/07/2026
New preprint w/ Leo Tiokhin & @lakens.bsky.social! Registered Reports (RRs) are great for science b/c publication is guaranteed before results are known, reducing publication bias & QRPs. This feature supposedly also makes them great for *scientists*. But is that really true? 1/ tinyurl.com/4sy993rr
tinyurl.com
Career incentives make Registered Reports unattractive under realistic academic conditions
Registered Reports are a publication format designed to reduce publication bias by guaranteeing publication before results are known. This guarantee is considered attractive in the prevailing ‘publish...
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Gilad Feldman @giladfeldman.bsky.social · 23/07/2026
It has an API. If you're not happy with OSF ui ux, you can consider creating your own ui ux on top of theirs. This is my basic attempt: betterosf.vercel.app But I'm also not a ui ux expert and not a developer. 🤷🏻‍♂️
betterosf.vercel.app
BetterOSF
A better interface to the Open Science Framework.
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Nursima Ünver @nunvera.bsky.social · 22/07/2026
SUPER excited to share the first-ever preprint out of my PhD! AND it comes with a CAT story. I know there are quite some people here who love seeing cat pictures!! 🐈1/🧵
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American Statistical Association History of Statistics @hos-asa.bsky.social · 22/07/2026
Happy 🎂Friedrich Wilhelm Bessel b #OTD 1784. An astronomer, known for Bessel's correction n – 1 for correcting bias in sample variance and Bessel's function. However, Bessel’s correction was probably developed by Gauss in 1823 & Bessel functions by Daniel Bernoulli (Stigler’s Law of Eponymy)
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American Statistical Association History of Statistics @hos-asa.bsky.social · 16/04/2026
3/ Ronald Fisher at first welcomed Neyman as an ally against Bayesian statistics. However, relations soon deteriorated, to say the least. Neyman later said that Fisher’s ‘torrents of derogatory remarks, insults, & polemics’ were ‘probably unparalleled in the history of science’.
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American Statistical Association History of Statistics @hos-asa.bsky.social · 22/04/2026
#OTD 1891 Sir Harold Jeffreys b (d 18 Mar 1989) Guy Gold Medal 1962. A geophysicist known for his ideas on Bayesian theories of probability and Jeffrey’s prior. Bayesian statistics were overwhelmed by the dominance of the Fisher-Neyman-Pearson school (which he opposed) 1/5🧵
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