Non-adherence is central to therapy research, and it's among the primary reasons I like ITT. Removing non-adherent persons from a therapy RCT would result in a causal estimand that has less relevance to real-world therapy than otherwise. Real world therapy clients don't perfectly comply.
New Paul Meehl Graduate School course: Advanced Basic Statistics Workshop: Deepening Your Understanding of Standard Statistical Analyses
March 27, 2026
Sign up:
paulmeehlschool.github.io/2026-02-23-a...
Lovely day in Eindhoven, and not just because of the weather! I had Maciej Behnke over as visitor for a few days to talk science and pick up an old collaboration! And @crist14n.bsky.social had Jenny Murphy, Simon Nolte, and Robert Rein over to talk computational reproducibility in Sports science.
@jennymurphy2.bsky.social
The lack of uptake of sequential analysis shows how irrational scientists are, and how their methods are driven by norms. Sequential analyses give you more flexibility and are more efficient than a single hypothesis test, and yet, they are still very rare. lakens.github.io/statistical_...
Does your R-script work on your computer? Want to make it fully reproducible on ANY system, now and in the future? In this video, I demonstrate how to turn R scripts into reproducible, version-controlled projects with worcs, renv, targets, and testthat to verify reproducibility. youtu.be/3mgRFMr5APU
One of my two last (ever) papers on tDCS:
Does anodal tDCS over M1 really enhance motor sequence learning? A non-replication of earlier findings in a double-blind, pre-registered large-sample study in humans
www.medrxiv.org/content/10.1...
Call for Submissions for the Theory Methods Conference 2026, September 30-October 2! theorymethodssociety.org/conference.h...
We invite you to:
1) Submit your proposal: edu.nl/mj9x6
2) Invite your colleagues/lab/(PhD) students, and encourage them to submit
3) Share this post
@andrew.heiss.phd joined us on the DS Lab, shared his screen with us, and spilled all of his secrets. You REALLY want to watch this: youtu.be/kqYbJoebrwE (links galore in the description!)
And follow along with all the tools he mentions here on his blog post: andhs.co/dsl
#databs #rstats #Positron
We continue with James Steele (wearing his 'stay calm and read Paul Meehl' shirt) who is in a high pace running us through his views on how we develop and test strong theories. #PSE8
Next free online INSPECT-SR training workshop on March 6th. Register here: www.trybooking.com/uk/FZUN Timed for Europe. Will try to add something for North America in the next few days...
New short blogpost!
There are probably many benefits of sharing clinical trial data, including:
Verifying results, better meta-analysis, understanding inconsistent results, further exploration, better clinical decision-making, learning how to run trials better, and reducing redundancy.
What's Missing? 300 extensions and counting. Help shape what comes next.
What Quarto extension would make your workflow easier?
There are already almost 300 extensions browsable at m.canouil.dev/quarto-exten... and installable via Quarto Wizard at m.canouil.dev/quarto-wizard/.
Drop your ideas below.
If there's enough interest, I might just build it.
#Quarto #OpenSource
New blog post introducing Causion - a web app for causal inference teaching and learning: pedermisager.org/blog/causion....
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 𧡠doi.org/10.1098/rsos...
Comparing registrations to published papers is essential to research integrity - and almost no one does it routinely because it's slow, messy, and time-demanding.
RegCheck was built to help make this process easier.
Today, we launch RegCheck V2.
π§΅
regcheck.app
Is anyone here an expert on #rstats ellmer structured data?
It works when I define the JSON schema of an object A containing an array of object B, but not when I read object B from JSON schema and use type_object and type_array to set up object A.
Reprex: gist.github.com/debruine/d35...
The full program of the Perspectives on Scientific Error conference is live! perspectivesonscientificerror2026.wordpress.com Keynotes: Leif Nelson about catching liars, Vlasta SikimiΔ about Science in the Age of AI, FrantiΕ‘ek BartoΕ‘ on Robustness Reports, and Femke Truijens on error in methods.
Here it is! #rstats
Our publishing system does not prioritise or value the careful curation of research data to be FAIR nearly enough. I have been data editing for AP&P for a year now, and it is sad to see no reward for the clearly careful organisation of data and materials vs that which is thrown on OSF with no care!
The program for the Perspectives on Scientific Error conference Februari 11 to 13 in Leiden is online!
Registration is open! perspectivesonscientificerror2026.wordpress.com
This is one of the most inspiring and fun metascience meetings around - lots of time to interact, great talks - so do come!
Pseudoreplication is a common issue in biomedical studies, Nicely illustrated here: pubpeer.com/publications...
And good explainer, with R code for analysing such data here:
www.wiley.com/en-ie/Basic+...
#statistics
You can sign up until January 23 for the free Paul Meehl Graduate School workshop on Scientific Criticism and Peer review taught by RenΓ© Bekkers. It promises to be an extremely interesting day, so do join us in Eindhoven on January 30th! paulmeehlschool.github.io/workshops/cr...
βAssessing the properties of the prediction interval in random-effects meta-analysisβ www.cambridge.org/core/journal...
How long should it take to retract a paper with incontrovertible signs of data fabrication? Sleuths think 2 months is too long, particularly when clinical risks are involved. deevybee.blogspot.com/2026/01/an-o...
#retraction #stemcells #cardiology
@erictopol.bsky.social
Very happy to have received a replication grant from NWO! We will be reproducing power analyses of large scale replication projects, to learn how to improve power analyses, and increase quality control in large team Science projects! www.openscience.nl/en/news/27-s...
βDutch people cycle an average of 2.6km each per day. If this pattern was replicated worldwide, annual carbon emissions would drop by 686 million tonnes.
This mammoth figure exceeds the entire carbon footprint of most countries, including the UK, Canada, Saudi Arabia and Australia.β @euronews.com
So, folks might recall the great BMR series of articles from the MacroFactor team last year. One of the articles tackled the challenges women with polycystic ovary syndrome (PCOS) face with respect to managing their weight, and claims that this is in part due to "slower metabolism"
π§΅1/7
Just had our first set of reviews from @pci-regreports.bsky.social for our proposed study on RT during GLP-1-RA treatment.
Probably the most constructive and useful set of reviews I have ever had... and having them before starting the study makes them even better!
11/10 would recommend!
Metacheck can now automatically 1) download a preprint from PsyArXiv, 2) create a report of the checks (stats, reporting guidelines, references, code, etc), 3) retrieve the authors email, and 4) send them the report.
Would you as an author appreciate this? When yes, when no?
