Matt Williams

This is a fun study, and I agree the CLPM totally sucks. Still... the question of how severe a test it is relates to how it behaves when testing a *false* hypothesis. So the fact we don't know how many of those 98*2 causal effects exist in reality seems a little troublesome...

So please send us your work!

(And yes, I know it's a bit weird that I'm located about as far from Europe as one can get without a spaceship)

I'm joining the brilliant @jkarl.bsky.social as co-EIC at Europe's Journal of Psychology. ejop.psychopen.eu/index.php/ejop

EJOP is a generalist psych journal, and applies a diamond open access model (no APC). I'd love to see more submissions with rigorous methods & well-calibrated conclusions!

PhD holder who didn't collect any original data for my thesis checking in 🙋 The world isn't short of data to analyse!

(I did collect data for my Masters... pen-and-paper surveys from primary school kids... back in the olden days!)

Have you considered getting them to use SPSS via a remote desktop connected to a university machine? Because I find that's always fun too

a man in a leather jacket is looking up and saying `` big brain '' while standing in front of a building . ALT: a man in a leather jacket is looking up and saying `` big brain '' while standing in front of a building .

Some researchers don't discuss their future research plans for fear of being scooped.

Not me. I drop bad ideas for unscrupulous people to 'steal'.

- What are the neural correlates of Open Science practices?
- What is the role of habits in learning a new skill through repetitive practice?

No. Post-publication peer review is an essential and under-appreciated service to the scientific community, and not remotely criminal. I'm sure it's upsetting to have problems in your work identified, but the solution is to do better science.

BEWARE: Surveys that allow anyone to "opt in" are vulnerable to those who create many accounts (using VPN to bypass IP limits) & use automated tools to generate bogus responses (such as saying "yes" to question about being licensed to operate nuclear submarines).
www.pewresearch.org/short-reads/...

In my experience PCI RR reviews are also pretty darn comprehensive and thorough! I guess YMMV though

Reviews from PCI would come from a specific thematic PCI. peercommunityin.org/current-pcis/ For those 3 journals the closest possible match is PCI RR (were they registered reports?), but that feels unlikely - only 1 of the 3 (Collabra) is a PCI RR friendly journal.

Sweeteners can harm cognitive health equivalent to 1.6 years of ageing, study finds Researchers say low- and no-calorie sweeteners appear to affect thinking and memory in middle age

"Sweeteners can harm cognitive health equivalent to 1.6 years of ageing, study finds"

Or does it? Let's take a look at this "study"...

www.theguardian.com/food/2025/se...

About PsyArXiv – PsyArXiv Blog What is PsyArXiv? PsyArXiv (psychology archive) is an open preprint archive designed to facilitate rapid dissemination of psychological research. PsyArXiv is a creation of the Society for the…

PsyArXiv's amazing team of 100+ moderators has now approved all preprints that meet the requirements outlined in the updated PsyArXiv policies (is.gd/paxpolicy). Thank you to everyone who volunteered, this was a true community effort! #PsychSciSky

I once watched their gig grind to a halt for 45 minutes because Anton was mad that Joel was taking some time off from their tour

To get married.

It doesn't sound like a problem. Unless a plan to stop if the estimated effect at peek 1 was under the SESOI was part of the initial plan and incorporated in the alpha spending calculation somehow?

The mods will be gradually chasing authors up to get these updated and accepted, but if you know this is you, updating the preprint to list all the authors will speed things along 🙂

If you have submitted a preprint to PsyArXiv in the last year or so and it *isn't* currently accessible, there's a good chance it's due to the document listing authors whom you haven't entered in the metadata.

You can contact psyarxiv@improvingpsych.org to discuss?

Current policies are here in case this helps: blog.psyarxiv.com/about-psyarx...

Very cool. Deborah was an excellent student in one of my tutorial streams when I was a PhD student. Stoked to see the great things she's gone on to!

Great list for all kinds of claims, not just autism.

No. And given that we know data is not avalailble upon request, it certainly won't be available upon reasonable request... osf.io/jbu9r_v1

PsyArXiv is now down to only ~40% of the backlog we started with, thanks to our amazing moderators 🎉 To all mods: thank you so much for your hard work!

Did one of your preprints get approved recently? Help us show our thanks by liking and sharing this post :)

#PsyArXiv #PsychSciSky

Many other countries in the world have parties. Most of us are managing to avoid a slide into dictatorship

What an odd paper!

This bit sounds faintly reasonable at first glance, but do we have any reason to expect that cross-sectional mediation would be much use for identifying candidate mediators to test experimentally? And how can something "account for an association" without having causal effects?

Authors, reviewers, editors... none of them noticed that the title is inconsistent with what the authors themselves acknowledged about the methods?

Jesus take the wheel

The Elusive Backfire Effect: Mass Attitudes’ Steadfast Factual Adherence - Political Behavior Can citizens heed factual information, even when such information challenges their partisan and ideological attachments? The “backfire effect,” described by Nyhan and Reifler (Polit Behav 32(2):303–33...

I think you are referring to the idea of a "backfire effect" when debunking myths. The problem is that the backfire effect is itself essentially a myth.

link.springer.com/article/10.1...

🫢

Submissions for #AIMOS2025 in Sydney close in just under two weeks!
aimos-inc.github.io/aimos.confer...

Plus zero conditional mean of errors, way up in the top left!

Slide titled: "Assumptions of the model and model checking" with a scatterplot with axes how much people should worry vs how much people do worry.

this slide is from a colleague's introductory stats course, I think it fits many statisticians' experiences

Those effect sizes are remarkably high... an hour or so of playing games producing effect on working memory of d = 1.56? That's a bit too good to be true...