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Posts by Daniel Gerdesmann
Here’s yours truly, giving a keynote address at the @leopoldina.org conference where I talked about self-regulation and its role in education and the modern world.
Such a pleasure and honor to speak with these leader educators.
youtu.be/slOFIPdLyb0
A vintage sepia-toned portrait photograph of Danish seismologist Inge Lehmann taken in 1932, at around age 44. She is posed formally against a softly draped curtain backdrop, gazing directly at the camera with a calm, intelligent, and composed expression. She has short, neatly waved dark hair and wears a simple, elegant dark blouse or dress with a light-colored V-neck insert or scarf tied loosely. The image captures her poised and thoughtful demeanor during the early years of her groundbreaking career in seismology, before her landmark discovery of Earth's solid inner core in 1936. #seismology #WomensHistoryMonth
Educational diagram in exploded view showing the internal layers of the Earth. From left to right: a cutaway globe with blue surface and white continents labeled “CRUST,” followed by the thick brown mantle labeled “MANTLE,” the red outer core labeled “OUTER CORE,” and the small yellow inner core labeled “INNER CORE.” A complete blue globe with continents appears on the right for scale. All layers are separated horizontally to reveal the structure.
#OTD in 1936, Danish seismologist Inge Lehmann wrote a famous letter to a colleague outlining her theory that seismic waves (P-waves) recorded from distant earthquakes indicated Earth had a solid inner core.
Her discovery fundamentally changed our understanding of the Earth's interior. #WomenInSTEM
If you use GitHub (especially if you pay for it!!) consider doing this *immediately*
Settings -> Privacy -> Disallow GitHub to train their models on your code.
GitHub opted *everyone* into training. No matter if you pay for the service (like I do). WTH
github.com/settings/cop...
Screenshot of the title page of an article published in the journal "Psychological Methods" titled "nmax and the Quest to Restore Caution, Integrity, and Practicality to the Sample Size Planning Process."
Do you do quantitative psychological research? Do you need to conduct power analyses? Then you'd better read this article. doi.org/10.1037/met0... #PsychSciSky #AcademicSky #EduSky
CodaNote: Collaborative Markdown/Quarto/Rmarkdown
People were looking for collaborating on MD family files with knit rendering...
I built this tool for CORE team, works like Google Docs.
Opened it to all from internal use so everyone can use it.
Feedback welcome!
Try:
codanote.vercel.app
#rstats I'm glad to announce Jarl 0.5.0!
Jarl is a very fast R linter, written in Rust. This release brings many improvements and fixes.
See the blog post: www.etiennebacher.com/posts/2026-0...
And the full changelog: jarl.etiennebacher.com/changelog
🧵 to highlight some features below
(1/4)
I've been coming across so many great open science initiatives in other fields that I wanted to take a moment to highlight some of the efforts happening in the Education Sciences.
New blog post! 💡
cghlewis.com/blog/ed_open...
Color close-up portrait photograph of American computer scientist and programming language pioneer Jean E. Sammet in her later years. She has short, wavy silver-gray hair, wears thin oval metal-rimmed eyeglasses, bright red lipstick, a royal blue blazer, and a patterned scarf at her neck. She smiles gently toward the viewer against a softly blurred green outdoor background.
Computer scientist Jean E. Sammet (b. #OTD in 1928):
+Developed the FORMAC programming language, 1962
+Co-developer, COBOL programming language
+1st female president, Assoc for Computing Machinery, 1974, world's largest educational & scientific computing society
#WomenInSTEM #computerscience #WHM
We're #recruiting a research assistant to work on a DFG-funded project on #MetaScience at the University of Cologne. Some coding skills in #python required, and interest in modelling the #cognition of #reading! Please spread the word!
POSTDOC OPENING! We are hiring a Postdoctoral Fellow for a mixed-methods project aimed at supporting and researching implementation of high-quality preschool curricula. The position is 1-2 years and can be in person or remote.
More details here: edpolicy.umich.edu/what-we-do/j...
@amengel.bsky.social and @scottclifford.bsky.social recently argued the opposite, because acquiescence bias can severely distort the relationships between constructs.
link.springer.com/article/10.1...
🚨 New Blog Post 🚨
I wrote my very first blog post 😊
This post is for quantitative researchers working with negatively worded Likert-scale items and haven't heard that these items can cause problems. I outline key issues, describe alternatives, and recommend lit.
yannicmeier.de/2026/03/03/w...
The call for applications for open education research fellows is open! Fellow academics, please share, details are here: openedgroup.org #openeducation #oer
youtu.be/bZe5J8SVCYQ?...
A lot of more complex modeling and psychometrics reminds me of this video lol.
We know what the dimension is because of what it isn't!
Paul R. Ehrlich, Who Alarmed the World With ‘The Population Bomb,’ Dies at 93 His best-selling 1968 book, which forecast global famines, made him a leader of the environmental movement. But he faced criticism when his predictions proved premature. Keith Schneider https://www.nytimes.com/2026/03/15/books/paul-r-ehrlich-dead.html
Cover of the Population Bomb
Paul Ehrlich has died. His 1968 book,The Population Bomb, is mostly remembered for predictions that didn't pan out.
But its influence on the radical environmental movement is underappreciated. A thread on Ehrlich's complicated legacy from my interviews with current and former eco-activists.
Marshall not only shared his own story, but also turned my childlike drawing from last year's conference into a real diagram of the long and winding road towards evidence use.
Me, after debunking learning styles and offering people a better way to differentiate instruction: youtube.com/shorts/e-BFj...
if anyone else has papers or projects that use rix, please let me know! in open source, people open issues to tell you when things don't work (which is fine) but sometimes, getting positive feedback is nice as well :D
I'm a fan of design-based research and how it is deeply situated and also collaborative with (in this case) teachers and students. Seems like digital literacy is shifting every month, now, so we need more research like this into what students are actually doing. #PsychSciSky #AcademicSky #EduSky
How much does it pay to publish an open access academic book? Read this thread for my story and 💲💰 amounts. 🧵
www.routledge.com/9781032908724
New post from me on The 100% CI. Think inside the box, part 1: The guy Euclidean distance told you not to worry about
www.the100.ci/2026/03/09/t...
New publication alert! "Beyond Representation: Epistemic Justice in Science Education through the Historical Sciences and Indigenous Knowledge" in Science & Education. Limited free copies here: rdcu.be/e7jPw
The Norwegian Consumer Council with an amazing video on enshittification and how to resist it.
www.youtube.com/watch?v=T4Up...
Baturday
Bat World Sanctuary
Screenshot of my username and handle. The domain is eurosky.social.
😎🇪🇺