This article illustrates how problematic are publication venues like Qeios, which operate without editorial oversight. The author doesn’t cite Lynn at all; the source of “national IQ” data is given instead as this paper 👇 which appears to be “peer approved” but is in fact just Lynn’s data rehashed
The Iowa Gambling Task is an extreme example of Jingle Fallacy and schmeasurement.
In 100 articles we found 244 different ways of scoring it, 177 were never reused. Correlations between them range -.99 to .99.
At the same time, we show meta-analyses combine these results as if they’re equivalent.
PhD position with Dr Chloe Fawns-Ritchie @cfawnsritchie.bsky.social exploring how chronic pain and analgesic use shape cognitive decline and #dementia using UK Biobank and other cohorts with advanced modelling.
www.dementiaresearcher.nihr.ac.uk/job/phd-pain...
I feel like psychometrics is uniquely bad at naming things. Parallel, congeneric, tau-equivalent, essentially tau-equivalent measures? Configural, metric, scalar, residual invariance? Item difficulty defined so that the higher the difficulty, the easier the item???
European Conference on Personality, Edinburgh, 2026
Submissions are now open for 22nd European Conference on Personality (Edinburgh, 2026); deadline 7/12/25.
Keynote speakers and pre-conference workshops have also been confirmed.
www.ecp22edinburgh.org/submission
Rethinking measurement invariance causally Highlights: It is preferable to work with a causal definition of measurement invariance A violation of measurement invariance is a potentially substantively interesting observation Standard tests for measurement invariance rely on strong assumptions Group differences can be thought of as descriptive results
Conceptual graph illustration the central points of the manuscript. A group variable is potentiall connected to a construct of interest which affects items. Measurement invariance is violated if the group variable directly affects the items, for example by modifying the loadings from the construct to the items, or by directly affecting an item
To make this less abstract, consider a scenario where students take an exam, R, meant to capture some ability, T, and then are admitted to a program, V, depending on their exam results: R → V. This is sufficient to result in a violation of the statistical definition of measurement invariance. Exam results and admission are not independent given ability because exam results have a direct effect on admission. Even if we know somebody’s ability (e.g., we know it’s very high), learning about their admission status (e.g., they were not admitted) can tell us something about their exam result (e.g., it may have been worse than expected). According to the causal definition, this in itself does not constitute measurement bias, which seems a sensible conclusion here. After all, the scenario does not involve any reason to believe that the measurement process varied systematically by admission status. Admission happens after the exams took place, it cannot retroactively influence the measurement process (and, for example, lead to unfair treatment depending on admission status).
New paper out with @boryslaw.bsky.social 🥳 In which we sketch out how to rethink measurement invariance causally for applied researchers. And provide a causal definition of measurement invariance!
www.sciencedirect.com/science/arti...
Calling for your paper for the upcoming collection
Brain metabolomics in dementia and neurological disease
I’m honoured to be serving as the collection’s Guest Editor
and eager to read your submission. #CallForPapers @natureportfolio.nature.com Learn more about the
collection: go.nature.com/41S5bI3
Dundee waterfront
Join us on Friday 5 December for the 15th Scottish Pain Research Community / NRS Pain Network Annual Scientific Meeting, being held in Dundee - Scotland's sunniest city! Registration and call for abstracts are open now! @nrs-pain.bsky.social
www.nhsresearchscotland.org.uk/calendar/spa...
Finishing your PhD & job hunting? Join our Salon on Aug 20, 12pm with Chloe Fawns-Ritchie @cfawnsritchie.bsky.social & Ishita Virmani for advice & experiences on finding your next role in dementia research.
communities.dementiaresearcher.nihr.ac.uk/c/events/adv...
📣Lecturer post in differential psychology available in Edinburgh! 📣
Fixed-term, teaching-focused role. Ideal for someone post-PhD with expertise/interests in Personality or other differential topics.
Closing 13th June. Get applying!
elxw.fa.em3.oraclecloud.com/hcmUI/Candid...
Extremely excited to share the first effort of the Revived Genomics of Personality Consortium: A highly-powered, comprehensive GWAS of the Big Five personality traits in 1.14 million participants from 46 cohorts. www.biorxiv.org/content/10.1...
Very cool! I had the pleasure of seeing the Chicago Archaeopteryx whilst visiting Chicago in December. Utterly mesmerised by the feathers!
How do life satisfaction and job satisfaction vary among hundreds of jobs? (Doing a religion job looks good, if you are considering a career change.)
New preprint: osf.io/preprints/ps...
I am looking for a PhD student to study the role of exposome in the development of hypertension in over 200,000 individuals of the Estonian Biobank @estbiobank.bsky.social
genomics.ut.ee/en/content/p...
applications until May 15th!
And it's over already! A big thanks to everyone who came today, who presented their work, and to our fab organiser, Lizzie Bradford, for hosting us.
If you'd like to join SCAN, send a message or sign up via the link in the bio. As you can see, we're a friendly bunch!
The sun is shining in St Andrews ready for our @scotcogageing.bsky.social meeting this afternoon! 😄
Best of luck!!
New post by me:
The decline in cancer mortality is about much more than smoking. We shouldn't minimize the very real impact of many contributors — including improvements in diagnosis, medical and surgical innovation, vaccination against cancers, and more — to the reduction in cancer death rates.
Well done, Blair! Sorry to have missed this but I hear it was fantastic!
Tenure-track Lectureship (Assistant Professor) in Organisational Psychology at The University of Manchester. Come work with us!
www.jobs.manchester.ac.uk/Job/JobDetai...
Dr Aja Murray’s keynote explored how we can better understand and support young people’s mental health📱🧠🌍
She discussed how smartphone-based data and youth involvement can offer deeper insights into their daily experiences and guide more effective, relevant mental health support #EMH2025
43% of participants didn't use the app *at all*. Only 22% even completed 4 of the 7 modules.
This is also not new. Lots of other trials also show us, using quant and qual data, that adolescents don't much like universal interventions, and don't do the tasks/homework (I can share refs if helpful)
You. It’s gonna be you
Great response from Rory Collins: "Data locked away benefits no one, but when [de-identified] data is shared responsibly and carefully with bright minds everywhere, we get results that will give us all a healthier future."
www.theguardian.com/science/2025...
The Guardian really have it in for UK Biobank, don't they? This time because Chinese researchers can access de-identified health data, despite UK Biobank participants giving explicit consent for researchers worldwide to use their health data for health research! www.theguardian.com/technology/2...
Published today in Lancet Neurology. Updated treatment guidelines from @iasp.bsky.social NeuPSIG. A major international project, of which I was privileged to be a part.
doi.org/10.1016/S147...
It is one of the largest dinosaur tracksites in Scotland.
Trackways of theropods and sauropods cross each other in the shallow sand of a Jurasssic lagoon.
Dinosaurs going about their lives, loitering near the shore when Scotland was a subtropical island.
The newest dinosaur discovery from Scotland! Over 100 tracks made by theropods & sauropods.
In the same spot where, 170 million years later, Bonnie Prince Charlie landed on Skye to escape the English.
When the Prince was on the run, he sprinted in the footsteps of dinosaurs!
Thrilled to share our latest publication in Alzheimer’s & Dementia: a global survey on experiences and perceptions of sexism in dementia research careers.
Grateful to my incredible co-authors for their collaboration on this important topic.
alz-journals.onlinelibrary.wiley.com/doi/10.1002/...
The largest ever genome-wide association study on osteoarthritis has advanced understanding of the disease and laid the groundwork for developing more effective and personalised therapies that could transform osteoarthritis care: edin.ac/43HK39g @genscot.bsky.social @www.helmholtz-munich.de
