Angelika Stefan

Haha, you're mean! I told them I'd pick the best question, change the numbers and put it in the exam :D

I loved it because I ended up learning a lot about common misunderstandings that I was able to address before the exam + little prep for the assignment. Students loved it bc they had a full scale mock exam for a new course + easy good marks bc they could play their strengths on the assignment

Not foreign policy, but I once asked my students to come up with mock exam questions and answers for an assignment, then shared the anonymized & corrected questions as prep material.

View from the Golden Jubilee Bridges towards the London Eye, with Westminster and Big Ben in the background

London calling! All psyched to give a talk at the Open Research Summer School at @kingscollegelondon.bsky.social tomorrow!

It's an elderly care facility in Anglesay, so unlikely to be widely known (and luckily not a major employer!). I told them that we impart values of transparency and openness to our students and sent them an explainer of the Equality Act though. Also warned my student about the 🚩🚩🚩

PSA future employers of my students: Asking me in your reference form whether my student is "loyal and discreet" (not applying for the MoD here) and "prone to continual days off sick" is not a good look!

🤯🤯I AM SO MAD RIGHT NOW! 🤯🤯

Good to know I'm not the only one! Let's hope they get it fixed soon!

Thanks! 🙏🏼 I checked the COS Bluesky and a different ping site but couldn't find any info!

Anyone else having trouble with the OSF today? Tried uploading some files today and now I keep getting internal server errors...

#openscience @cos.io

Also, to everyone who met me there last year: I've learned my lesson about UK geography and trains and will hopefully avoid another public transportation disaster, which means that you'll get the chance to hear me talk about p-hacking without sounding like I just attempted the London marathon!

Looking forward to presenting at the King's Open Research Summer School and meeting the London Open Science crowd! Thanks @samwestwood.bsky.social for the invitation!

Poster to call for participants in a research study named "Decision-making based on research outcomes". Link to the study: https://livpsych.eu.qualtrics.com/jfe/form/SV_9KKU6B4Rg2DMQ1U

Consider supporting my brilliant Master student Carys Hoggan (not on Bluesky) by taking part in her study on how research results may influence our decision-making!

This looks really cool! Congrats on the paper, @manikyaalister.bsky.social !

Please spread the word!

Psych Science is recruiting volunteers to help conduct computational reproducibility checks.
If you have experience writing reproducible analysis scripts in psychology, and want to join the team, please apply!

www.psychologicalscience.org/publications...

After years of hard work, @hashimsat.bsky.social's big one is out!

Huge thanks to co-authors Katharina Wille, Matt Nassar, Radek Cichy, @nicoschuck.bsky.social & Peter Dayan - and to @haukeren.bsky.social for his invaluable support!

Because I have opened a BlueSky window and am procrastinating on reading final papers, let me also share what this spring has been like from my corner of the academic world.

Screenshot of the APS program for "Current Issues in Meta-Science", Saturday, May 24, 3:00pm

Titles and authors in the session: * Statistical Power in the Light of Methodological Reform (Jolynn Pek) * The Poor Statistical Properties of the P-Curve Procedures (Richard Morey) * Consistent Methods Protect Against False Findings Produced By p Hacking (Duane Wegener) * Accumulating Evidence across Studies (Blakeley McShane)

If you'll be at APS2025 in DC next week, I'll be talking about the terrible statistical properties of the p curve procedure in the "Current Issues in Meta-Science" session Saturday, May 24th at 3pm. This will likely be my last US conference in a very long time. A brief summary follows. 1/

Travelling to the UK from Munich Airport, always a joy... After accidentally (!) stamping my partner's passport on a previous trip, today they didn't want to believe me that eVisas exist in the UK. But, thankfully, they believed the random guy next to me who shouted "DOCH" in good German fashion 😒

In this session, we explore how to get started with Python — especially if you’re coming from R or just curious about Python for data analysis.👩‍💻 What you... R-Ladies Rome (English) - From R to Python: A Gentle Introduction

🎥 We're live! Catch up on the “From R to Python: A Gentle Introduction” session with R-Ladies Rome and Federica Gazzelloni. Explore similarities, differences, and essential Python libraries like Pandas and Sklearn.

📺 Watch now: www.youtube.com/watch?v=PVnT...

📚 Resources: Slides and booklet

Prior Diagnostics and Sensitivity Analysis Provides functions for prior and likelihood sensitivity analysis in Bayesian models. Currently it implements methods to determine the sensitivity of the posterior to power-scaling perturbations of the...

priorsense 1.1.1, for prior and likelihood sensitivity analysis, is now in CRAN (n-kall.github.io/priorsense/)

There is now an easier way to select which priors are power-scaled using the new prior tags feature in brms (2.22.11+), which allows focusing the analysis on specific priors.

1/3

📢 Postdoctoral Research Associate vacancy

Exciting opportunity for a Postdoctoral Research Associate to join our new UKRI-funded project on dietary health inequalities @liverpooluni.bsky.social.
See below for further details & reach out if any questions.
tinyurl.com/mpwbkdub

Psych-DS is (1) spellcheck for your datasets and (2) a pathway to standardizing data in our academic fields that *everyone* can learn.

And it's live RIGHT NOW!

psych-ds.github.io

(This is the announcement post I've been leading up to)

Go to Amsterdam and you can have it all 😅

Honestly, we were surprised too, even my colleague who does research on vaping! May be a local trend, too (this was just a toy study, nothing representative), but anecdotally, I can confirm that I see lots of people vaping around here, so I tend to believe the data.

In my experience, vaping is much more common in the UK than in Germany. One of my colleagues recently ran a study and almost 100% of students said that they were vaping while out drinking (so, at least occasionally). Don't think this is as common in Germany

FWIW, I like the layering effect created in this picture! It makes me think of a happy geometric ballet dress! Btw, love your art and totally sympathise with your frustration of "not everything generative is AI" 😊

🚩New version of a working paper now available!🚩
"Rounding the (Non)Bayesian Curve: Unraveling the Effects of Rounding Errors in Belief Updating" with Yaroslav Rosokha

papers.ssrn.com/sol3/papers....

A thread 👇👇

#Bayes #TeachBE #EconSky

I'm sad to see that the UvA and other Dutch universities took this decision. Cutting English-language degrees is not going to improve the quality of education of Dutch students and it hurts the academic environment. Feeling with my former colleagues today 😔

Replicability Project: Health Behavior (RPHB) The Center for Open Science (COS) is launching the Replicability Project: Health Behavior (RPHB), which is a large-scale, multi-team effort to help support a transparent and trustworthy foundation in ...

Call for collaborators!

We are launching the Replicability Project: Health Behavior (RPHB) to replicate a sample of findings relevant to public health, epidemiology, health policy, and behavioral science.

Teams receive funding for conducting replication studies.

Details: www.cos.io/rphb

3 options I can spontaneously come up with: 1) generate a random code, let participants copy(+paste) it, tell them to re-enter in follow-up, 2) ask for snippets of personally identifiable information using questions at both time points, 3) ask for email, send follow-up with personalized url to email