Jesper N. Wulff
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jnwulff.bsky.social
Jesper N. Wulff
@jnwulff.bsky.social
Professor @AarhusUni doing research on organizational research methods and teaching deep neural networks in our Msc. BI program. https://sites.google.com/view/jesperwulff/bio
Reposted by Jesper N. Wulff
Wow this scoring chaos seems to be an extreme case of what I say about many ad hoc analyses: no derivation of method from a clear scientific theory, no assessment of statistical properties, and decades pass before someone notices. This happens in biology too, so let’s not pick on psychology only
February 2, 2026 at 11:55 AM
Reposted by Jesper N. Wulff
who did this
November 5, 2023 at 7:29 AM
Reposted by Jesper N. Wulff
Thanks! I'll give it another go.
January 14, 2026 at 7:47 PM
This looks very cool. Downloaded it, but then I needed something called Azul Zulu JRE with JavaFX, which I never heard of before. Downloaded that and then it wouldn't install.

If you want more people to use this, make a browser app so anyone can just click a link, upload their thing and then go.
January 9, 2026 at 8:16 AM
Multiple entities over multiple time periods, e.g., same people across years. So at least two periods as long as the same people are observed in both periods.
January 6, 2026 at 5:30 PM
Reposted by Jesper N. Wulff
(Also, icyi, here are the 42 papers citing our non-existent paper which includes a "meta-analysis" - often called the evidence "gold standard" - of "LLM effects" in education 🤮
scholar.google.com.vn/scholar?star...)
scholar.google.com.vn
December 19, 2025 at 6:35 PM
Reposted by Jesper N. Wulff
Keeping this at hand in case I need to point to it and tap
December 12, 2025 at 4:39 PM
Reposted by Jesper N. Wulff
Some closing thoughts for my students this semester on LLMs and learning #rstats datavizf25.classes.andrewheiss.com/news/2025-12...
December 9, 2025 at 8:17 PM
Reposted by Jesper N. Wulff
December 7, 2025 at 7:09 AM
Reposted by Jesper N. Wulff
“No, we’ve all accepted that the goal is to publish anything and everything and see what sticks. More students. More “collaborations”. So many papers that no human can possibly be paying very much attention to any of it. And we all know where the incentives lie.”
December 7, 2025 at 7:12 AM
Reposted by Jesper N. Wulff
"Runctitiononal features"? "Medical fymblal"? "1 Tol Line storee"? This gets worse the longer you look at it. But it's got to be good, because it was published in Nature Scientific Reports last week: www.nature.com/articles/s41... h/t @asa.tsbalans.se
November 27, 2025 at 9:30 AM
Reposted by Jesper N. Wulff
hahahaha just got an email from someone who was using Claude to generate a boilerplate #QuartoPub document and the LLM *used my name* as the author. The computers are literally trying to be me now 😂🤣🙃🫠
November 21, 2025 at 1:38 PM
Which tools are you using for making them?
November 20, 2025 at 6:23 PM
Reposted by Jesper N. Wulff
I know that at this point it's a subplot in the Epstein files drama, but I feel compelled to point out, once again, that Larry Summers HAS NO BUSINESS teaching students at ANY university ever again!

My latest cries into the abyss, in @thenation.com

www.thenation.com/article/soci...
Why Is Larry Summers Still Employed?
The revelations about the economist’s attempts to pressure a women into a “relationship”—with guidance from Jeffrey Epstein—should finally disqualify him from teaching students.
www.thenation.com
November 19, 2025 at 4:24 PM
Reposted by Jesper N. Wulff
A paper critiquing post-publication peer review has numerous made-up references, including a @nature.com article falsely attributed to our Ivan Oransky.
link.springer.com/article/10.1...
PubPeer - An expert criticism on post-publication peer review platform...
There are comments on PubPeer for publication: An expert criticism on post-publication peer review platforms: the case of pubpeer (2025)
pubpeer.com
November 16, 2025 at 9:11 AM
I've used your book several times for a graduate course on Bayes stats for business and data science students with great success. If you divide into beginner and adv. I imagine the first half would fit well for a bachelor level course.
November 17, 2025 at 7:23 AM
Reposted by Jesper N. Wulff
NEW: Epstein survivors release the most powerful PSA I have ever seen.

Make this go viral so every member of the House of Representatives sees it.
November 16, 2025 at 11:43 PM
Reposted by Jesper N. Wulff
TU/e has gained a new research centre: META/e. Daniël Lakens and Krist Vaesen were among the founders of this knowledge hub for metascience—research aimed at improving the practice of science itself. “We want to be a home for every researcher who occasionally wonders: what are we even doing?”
Knowledge centre META/e: home for those improving science
TU/e has gained a new research centre: META/e. Daniël Lakens and Krist Vaesen were among the founders of this knowledge hub for metascience—research aimed at improving the practice of science itself. ...
www.cursor.tue.nl
November 13, 2025 at 2:50 PM
Yes!!
There still seems to be a lot of confusion about significance testing in psych. No, p-values *don’t* become useless at large N. This flawed point also used to be framed as "too much power". But power isn't the problem – it's 1) unbalanced error rates and 2) the (lack of a) SESOI. 1/ >
November 1, 2025 at 7:04 AM
Reposted by Jesper N. Wulff
New blog post on Gelman's recent claim that Type S and M errors are intended as a 'rhetorical tool', and if I was wrong to believe they were recommended more routinely in our recent preprint criticizing the idea of Type S and M errors. daniellakens.blogspot.com/2025/09/type...
Type S and M errors as a “rhetorical tool”
We recently posted a preprint criticizing the idea of Type S and M errors ( https://osf.io/2phzb_v1 ). From our abstract: “While these conce...
daniellakens.blogspot.com
September 28, 2025 at 5:22 AM
Reposted by Jesper N. Wulff
🚨 New paper alert 🚨 Using LLMs as data annotators, you can produce any scientific result you want. We call this **LLM Hacking**.

Paper: arxiv.org/pdf/2509.08825
September 12, 2025 at 10:33 AM
What corresponds to the Z-test in this analogy? If the P-curve is the W-test then what is the Z-test?
September 25, 2025 at 1:30 PM
Reposted by Jesper N. Wulff
More examples of faked institutional email addresses from @deevybee.bsky.social here deevybee.blogspot.com/2022/10/what...
September 23, 2025 at 2:24 PM