The more logistic regression I do, the more I like linear probability models 🙌

Great post, as always! I'd just add that multicollinearity is *almost* never an issue... unless your predictors are so heavily correlated that it becomes statistically spaghetti (i.e., that it becomes algebraically impossible to disentangle their unique effects, leading to unstable estimates).

Lecornu II : Matignon Drift Lecornu 3 Lecornu 4Ever Lecornu V Infinite Lecornu Origins The Lecornu Tales Legend of Lecornu

Poisson goes brrr. But good old OLS is still my favourite.

This is when I realized: we’ve been here before! The garden of forking paths in well-trodden by us psychologists. And we already know that analytic flexibility can allow us to present basically any finding we want as significant. So I wondered: how much flexibility can we get with silicon samples?

LLMs are incredibly powerful tools. The only limitation is that, in order to unlock their full potential, it is necessary to verify the answer. In other words, you have to be able to do what the LLM is doing.

This would be the right time to push for the creation of an ‘old-school code school,’ proudly advertising that it doesn’t use AI — betting on the idea that programmers who actually know how to program will soon be rare and worth their weight in gold.

The new {marginaleffects} release for #RStats (0.30.0) comes with two new vignettes: 1. Speed up computation with automatic differentiation (often 10x gains) marginaleffects.com/bonus/perfor... 2. Power analyses with {marginaleffects} and {DeclareDesign}. marginaleffects.com/bonus/power....

I am beyond excited to announce that ggplot2 4.0.0 has just landed on CRAN. It's not every day we have a new major #ggplot2 release but it is a fitting 18 year birthday present for the package. Get an overview of the release in this blog post and be on the lookout for more in-depth posts #rstats

J’ai eu le plaisir d’intervenir à l'@unedic.bsky.social autour de la stigmatisation des "chômeurs" et des manières de composer (ou non) avec l’assignation sociale du chômage. Merci ! Un entretien prolonge la discussion : shorturl.at/5AFS4 (Avec notamment des bouts de @michaelzemmour.cpesr.fr)

I'm In This Photo and I Don't Like It

Here's a version that's a bit more Bluesky-and-Mobiles compatible.

@dingdingpeng.the100.ci and @vincentab.bsky.social wrote an amazing paper about marginal effects. While preparing my advanced statistics and methods class, I (surprisingly) had fun reproducing their Figure 1, adapting it to their Example 1, and ploting the text and arrows directly using ggplot().

Okay, so you've crunched your numbers and got some awesome statistical models? Sometimes, just knowing "X predicts Y" isn't enough to really get to the juicy bits. That's where the cool post-hoc stuff comes in – think estimated marginal means, contrasts, pairwise comparisons, or #marginaleffects.

@dingdingpeng.the100.ci and @vincentab.bsky.social are the coolest kids in town — again!

Open science: Pre-publish your work! Journal editor: Anonymize your pre-printed manuscript for peer review! psyarXiv: Incomplete submission. Authors not listed on paper. Pre-print has been withdrawn.

@gralefrit.bsky.social You have to see these! A friend of mine has been collating a series of images entitled "Things my students have written turned into Philomena Cunk quotes" and they're just glorious.

The landmark Handbook of Social Psychology's sixth edition is now available - and open access for the first time! It features 50 chapters from 50+ scholars. Learn more + download it today: ow.ly/RPjn50VV8bT

This new package for mediation is great! The user interface is *so intuitive* but the unsung hero of this software is the documentation:

« Esprit chagrin », c’est beau comme du Mylene Farmer

🧵New paper out in Cognition Why do people moralize harmless carnal sins (e.g. gluttony, masturbation)? @danielnettle.bsky.social & I find that these behaviors activate reciprocity-based moral judgment—no need for a distinct "purity" module. 50 days free link: authors.elsevier.com/a/1l18D2Hx2-...

It's bonkers that in academic science we spend hours obsessing over the wording of a paper, but often only one person has seen the code that produced the results! 2/N

Pour les petits besoins de sa com' personnelle, M. Macron est en train d'engager la responsabilité et la réputation de la France, mais sans mettre les moyens, et en ciblant l'inutile. En vouloir à la France va être tout à fait légitime. Et c'est très grave.

Je suis très en colère de lire "Ça ne dit rien de la souffrance quand on est down" Non, avoir une phase dépressive ou maniaque ne veut pas forcément dire que l'"inconscient" a quelque chose à "révéler" Il n'y a pas forcément de trauma caché derrière une bipolarité!

From Experienced Stigma to Job Access of Unemployed People: A Longitudinal Study of the Mediating Role of Anticipated Stigma, Internalized Stigma, Self-Efficacy, and Job Search Behavior: https://osf.io/nsdka

Just got a new preprint, by the way. Nothing fancy, but the first (ever) victimisation study among unemployed individuals. Not nice to find that 1/2 have been discriminated against, think they are judged negatively because they are unemployed, and 1/10 feel useless because of their unemployment.

The world's most famous penguins, after Madagascar's

On a publié un nouveau travail (en français pour une fois). On entend souvent dire que "les chômeurs sont stigmatisés" (et c'est vrai). Cependant, aucun travail académique ne l'a jamais quantifié (même si l'UNEDIC a déjà réalisé de très beaux travaux qui s'en rapprochent). Donc on l'a fait.

C'est marrant, parce que c'est pareil pour le chômage. L'opinion n'est pas toute rose, mais quand même : 3 personnes sur 4 pensent que le chômage est "davantage une situation subie plutôt que choisie". C'est un peu ce que @vtiberj.bsky.social dit, la droitisation par le haut, pas par le bas.

1/3 Tutorial on exploring ecological momentary assessment data is online at AMPPS, with: - Accessible ways to visualize data for better understanding - Models to get some first insights - Further reading boxes for more advanced topics - Reproducible pipeline you can run over your own data

Si même le mot « biais » y passe, l’économie comportementale va jamais y survivre

Of course, participants don't read consent forms: they trust us and the IRB (which we should nurture). Researchers should - Provide clear and quick take-home messages - Not expect participants to spend time reading a boring, 10-point, single-spaced, IRB-approved consent form

De l'intérêt d'une étude scientifique des conceptions concurrentes de la laïcité, pour en tirer des propositions politiques et des chemins désirables.

En pleine rédaction d'un chapitre pour débunker les idées fausses sur le chômage, les chômeurs et les chômeuses. On y parlera fraude, argent, travail, pauvreté, famille... C'est plus un chapitre, c'est une telenovela. Le livre paraît d'ici la fin de l'année. 2025 s'annonce déjà un vrai plaisir

Exactly what Behavioural economics has been doing for the last decades: building mathematical models of human’s thoughts and behaviour. We could (should) most definitely learn from it

The International Review of Social Psychology is now on Bluesky ☀️🥳. IRSP is a #socialpsychology journal with: ✅ no APCs, ✅ #openaccess, ✅ Q1 ranking and 5-years IF = 3.3. Follow us, submit your work, and check out our latest publications! 👉 rips-irsp.com

#helloESR 👋 Doctorant en psychologie sociale (soutenance en décembre 🎉) sur l’assignation sociale des chômeurs, ses formes et ses conséquences.

I’ve seen plenty of writing tutorials, but none has explained so clearly how to write a compelling introduction!