Psych-DS is spellcheck for your datasets, and it has an R package now! Available in beta now, made by the excellent Brian Leonard, instructions here: psych-ds.github.io/psychds-r/

My article "Three-Sided Testing to Establish Practical Significance" with @jackfitzgerald.bsky.social is now published in AMPPS! journals.sagepub.com/doi/10.1177/... Three-sided testing is an improved version of TOST that lets you test for equivalence, superiority and inferiority simultaneously.

Sage Journals: Discover world-class research

Subscription and open access journals from Sage, the world's leading independent academic publisher.

journals.sagepub.com

New episode of Nullius In Verba! We discuss the jingle-jangle fallacy, the problem of vague concepts, how the incentive structures promote vagueness, why people who prefer more rigour have to be called the validity 'police', and much more! nulliusinverba.podbean.com/e/episode-74...

Episode 74: Notiones Vague | Nullius in Verba

In this episode, we discuss the problems associated with vague concepts in psychological science. We talk about the jingle-jangle fallacy, the trade-off between broad concepts and more precise…

nulliusinverba.podbean.com

Anyone know of any good papers on the role of postdiction/retrodiction in theory appraisal? #philsci

Just learned about this study looking at methodological trends in psych and econ over time: online.ucpress.edu/collabra/art.... Matches my perception well: Nobody in psych bothers to (explicitly) try causal inference unless they conducted an experiment, not a lot of theoretical work either.

New blog post introducing Causion - a web app for causal inference teaching and learning: pedermisager.org/blog/causion....

Introducing Causion: A web app for playing with DAGs | Peder M. Isager

Personal website of Dr. Peder M. Isager

pedermisager.org

New blog post introducing Causion - a web app for causal inference teaching and learning: pedermisager.org/blog/causion....

Introducing Causion: A web app for playing with DAGs | Peder M. Isager

Personal website of Dr. Peder M. Isager

pedermisager.org

🚨 SynthNet is out 🚨 Researchers propose new constructs and measures faster than anyone can track. We (@anniria.bsky.social @ruben.the100.ci) built a search engine to check what already exists and help identify redundancies; indexing 74,000 scales from ~31,500 instruments in APA PsycTests. 🧵1/3

New blog post! ”Which variables to control for, and why”: pedermisager.org/blog/which-v... In this post I give a beginner-friendly introduction to causal inference and statistical control, explaining why adjusting for the right variables clarifies relationships >

Which variables to control for, and why | Peder M. Isager

Personal website of Dr. Peder M. Isager

pedermisager.org

Join the next PMGS workshop where @ambra-prg.bsky.social will explain how to use Quarto for your reproducible research! 🔓🧑‍🔬

Sajedeh Rasti@sajedehra.bsky.social · 9mo ago

Registration is now open for our Quarto workshop at Paul Meehl Graduate School! Join us on December 12 in Eindhoven to learn how to use Quarto for reproducible research and communication. More details and registration here: paulmeehlschool.github.io/2025-11-03-q...

My paper with @lakens.bsky.social and @annaveer.bsky.social - “Replication value as a function of citation impact and sample size” - has just been published in Meta psychology! open.lnu.se/index.php/me...

I built a DAG diagram with garden hoses for teaching. Pictured: a collider bias diagram, inspired by a blocked pipe situation I experienced (which I credit with giving me the intuition though it also ruined my belongings in the flooded cellar).

Extremely honored to recieve Oslo New University College's science award for 2025. ONH has been a fantastic base to conduct my research at for the past 4 years, and I have an amazing team of colleagues around me to thank for that. From the bottom of my heart, thank you all!

Okay everyone, things are getting serious. I’m going to teach research methods again, 1st year psychology undergraduates. What would you cover with respects to philosophy of science, the research process etc.? I’m not very happy with the textbook stuff so I’m open to all ideas!

An abbreviation (ABB) in a journal article (JA) or Grant Application (GA) is rarely worth the words it saves. Every ABB requires cognitive resources (CR) and at my age by the time I'm halfway through a JA or GA I no longer have the CR to remember what your ABB stood for.

Can we infer causal relations from undirected network models of mental disorders? Some authors apparently say no. Personally, I don't see what network models are good for if they can't help us understand disease etiology (i.e. causality). Quote from onlinelibrary.wiley.com/doi/10.1002/...

New blog post! Why experiments are the gold standard for answering causal questions (pedermisager.org/blog/why-exp...). Many text books insist on experimental evidence to draw causal inferences bvut don't fully explain exactly what gives experiments their special powers.

RE @nulliusinverba.bsky.social ep 59: Meehl seems to assume that research is harder than teaching; teachers should be paid less and if you can't do interesting research you're "demoted" to teaching. Why not the opposite? Why not pay teachers more and say "if you cannot teach, do"?

Currently reading "Complex Systems Research in Psychology" (santafeinstitute.github.io/ComplexPsych/). If you're interested systems psychology/psychopathology, give this a read. van der Maas gives a very broad introduction to the topic, and supplements text with R code and practical exercises.

I often talk about the need for psychology to improve. That is because I think it is worth improving. It would be very helpful if I could easily provide a few dozen examples of the contributions that have been made to support that conviction. I know they exist. I would just like them in one place.

Just discovered "Mental health professionals’ attitudes towards the network theory of mental disorders" by @leahschumaker.bsky.social & Levente Kriston (osf.io/462cs). Fascinating read. Partly confirms suspicion I've had for a while that therapists see NTMD as "nothing new" (but see pub for details)

My editorial on how journals can earn trust. We often use journal names as proxies for quality. This is bad bc it’s not valid. But it could be. Editors could make journal name a valid signal. And we could place value on journals that show us how they do that. journals.sagepub.com/doi/full/10....

There is still time to sign up for the last workshop of this academic year at PMGS, "Scientific Criticism and Peer Review," by @renebekkers.mastodon.social.ap.brid.gy Check out the details here: paulmeehlschool.github.io/workshops/cr...

Psych-DS is (1) spellcheck for your datasets and (2) a pathway to standardizing data in our academic fields that *everyone* can learn. And it's live RIGHT NOW! psych-ds.github.io (This is the announcement post I've been leading up to)

I'll finally get to teach a workshop on one of my favourite subjects - causal inference - at the Paul Meehl graduate school may 9th! Ever wondered what the point is of controlling for variables in your regression analysis? Come find out with us!

Daniel Lakens@lakens.bsky.social · last yr.

A new free workshop of the Paul Meehl Graduate School is open for registration! On May 9 @isager.bsky.social will teach on Causal Inference and Variable Control. Check out the announcement below, and see you all @tue.nl! paulmeehlschool.github.io/2025-04-02-c...

The new workshop of Paul Meehl Graduate School, Causal Inference and Variable Control by @isager.bsky.social, is open for registration. Check out the announcement below: paulmeehlschool.github.io/2025-04-02-c...

New workshop announced: Causal Inference and Variable Control | Paul meehl Graduate School

We are excited to announce that registration is now open for the workshop “Causal Inference and Variable Control”. In this...

paulmeehlschool.github.io

Looking for a PhD/Postdoc in Switzerland? English speaking lab, good pay, incredible scenery. There's lots of funding calls for projects related to my work on the meta-science of measurement, error detection and trustworthiness assessment. Reach out if you're interested in writing a grant together.

From www.chronicle.com/article/soci... by Gelman and King. I applaud the idea presented in this piece, but this specific argument is flawed🧵

My commentary on Isager, van ‘t Veer, and Lakens’ (2024) “Replication value as a function of citation impact and sample size” is now accepted at Meta-Psychology. CC: @isager.bsky.social @lakens.bsky.social @annaveer.bsky.social Preprint: osf.io/preprints/me...

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