Sebastian Trautmann

#ketamine #esketamine

Folks, some news. No, not that kind of news – what do you think this is, LinkedIn? It's this:

1. The applied causal graphs workshop deadline is 28th Feb. so get your abstracts in and hang out with us in Potsdam this May. Form and description is below

2. @dagophile.bsky.social is giving a keynote 🥳

#AffectSci

1/ New collab from @sadcatlab.bsky.social, OSU, UPenn, and UMSL! This is a multi-site RCT (N=453) comparing a free digital single session intervention (SSI) for students: COMET. TL; DR COMET works for depression and anxiety, less so for well-being/positive emotions
osf.io/preprints/ps...

Feb 24, 2026 Methods Talk: Inference on local variable importance measures for heterogeneous treatment effects

The Methods Series @ki.se continues in 2 weeks!

@pawelmorzywolek.bsky.social presents, "Inference on local variable importance measures for heterogeneous treatment effects."

📆 Feb 24, 2026
⏰ 15.00 CET/9.00 EST
📍 Online or In-Person

Register:
stats.sender.net/forms/e7JD1d...

It must be very hard to publish null results Publication practices in the social sciences act as a filter that favors statistically significant results over null findings. While the problem of selection on significance (SoS) is well-known in theory, it has been difficult to measure its scope empirically, and it has been challenging to determine how selection varies across contexts. In this article, we use large language models to extract granular and validated data on about 100,000 articles published in over 150 political science journals from 2010 to 2024. We show that fewer than 2% of articles that rely on statistical methods report null-only findings in their abstracts, while over 90% of papers highlight significant results. To put these findings in perspective, we develop and calibrate a simple model of publication bias. Across a range of plausible assumptions, we find that statistically significant results are estimated to be one to two orders of magnitude more likely to enter the published record than null results. Leveraging metadata extracted from individual articles, we show that the pattern of strong SoS holds across subfields, journals, methods, and time periods. However, a few factors such as pre-registration and randomized experiments correlate with greater acceptance of null results. We conclude by discussing implications for the field and the potential of our new dataset for investigating other questions about political science.

I have a new paper. We look at ~all stats articles in political science post-2010 & show that 94% have abstracts that claim to reject a null. Only 2% present only null results. This is hard to explain unless the research process has a filter that only lets rejections through.

🚨SOLUTIONS🚨

Desk reject more stuff with actionable feedback.

Don’t request second reviews

Build larger editorial boards of volunteers

Wait to submit your work until it’s ready; a.k.a don’t send in your half-baked trash hoping for feedback

6/7

Universität in D ist, wenn alle in 1 künstlichen Hyperwettbewerb immense Zeit/Energie/Ressourcen verballern, um ‚exzellent’ zu werden, während man die, die am Limit ihrer Kräfte in Lehre/Forschung/Admin universitären Regelbetrieb so gerade am Laufen halten, ohne Rücksicht auf Verluste zusammenkürzt.

How can different modes of survey data collection introduce bias? | LSHTM Survey data are self-reported data collected directly from respondents by a questionnaire or an interview, and are commonly used in health research. Such data are traditionally collected via a single

Please join us in person or online @lshtm-dash.bsky.social on 26th February to hear about @georgiatomova.bsky.social's recent work on 'How can different modes of survey data collection introduce bias?'

www.lshtm.ac.uk/newsevents/e...

Confusion in gaming disorder measurement Abstract. Measurement is important for the scientific programmes of addictive behaviours. In the present study, we investigated the measurement of gaming d

First post of the year, new paper out today: we present possibly the biggest case of systematic Measurement Schmeasurement in tech use. It seems that most studies on gaming (videogame) addiction/disorder haven't measured gaming after all. This research took years, so long 🧵 doi.org/10.1098/rsos...

The Future of DSM: A Strategic Vision for Incorporating Socioeconomic, Cultural, and Environmental Determinants and Intersectionality | American Journal of Psychiatry PsychiatryOnline.org is the platform for all American Psychiatric Association Publishing journals, DSM, and bestselling textbooks, as well as APA Practice Guidelines, and continuing medical education.

The Future of DSM: A Strategic Vision for Incorporating Socioeconomic, Cultural, and Environmental Determinants and Intersectionality | American Journal of Psychiatry psychiatryonline.org/doi/10.1176/...

3-panel comic. (1) [Three small arthropods on ocean floor.] ARTHROPOD 1: Now that we’re multicellular, what are your plans? I’m gonna evolve little legs and swim around with them! ARTHROPOD 2: I’m gonna evolve sharp pincers and use them to crunch stuff! ARTHROPOD 3: I’m gonna evolve glands to make string from my butt and use it to construct elaborate geometric nets hundreds of times my size to catch other animals. (2) [Silence] (3) ARTHROPOD 1: *Dude.* ARTHROPOD 2: Can you *please* just be normal about this? ARTHROPOD 3: *What??!*

Early Arthropods

xkcd.com/3199/

Maybe obvious, but please don't use so-called AI tools for research if you don't know what AI or tool are. Nothing good will come of this.

Also when I and Iris wrote this it was 3 months ago, a long time in the nonsense hype world 🫨, and still it's not openly discussed this is undoing all the 2010s open science movement

bsky.app/profile/oliv...

Great work. I would love to see a replication of this for European countries. Anglo-Saxon academia is famously classist.

How Helsinki and Oslo cut pedestrian deaths to zero After years of committed action, neither city recorded a single pedestrian fatality in 2019

“They cut speed limits, changed street design, removed space for cars… Now it appears that work is paying off. #Oslo & #Helsinki are reaping the rewards of committed action on making their roads safer, reducing pedestrian fatalities to zero last year.” #VisionZero #SpeedKills

#nocutsinhessen & #nocuts nirgendwo, sondern strukturelle Lösungen für strukturelle Probleme!

Kommt zum #hochschulaktionstag morgen und seid laut für bessere Arbeits-, Forschungs- und Studienbedingungen!

New preprint by @semihaktepe.bsky.social 🎉

We compare ANOVA/SDT/GLMM for binary judgments in 20 datasets of the truth effect. #lme4

Main conclusion:
"GLMMs are a theoretically sound and practically robust method and thus superior for analyzing binary judgments in social and cognitive psychology.”

Recording now available: www.youtube.com/watch?v=u8vQ...

RegCheck RegCheck is an AI tool to compare preregistrations with papers instantly.

Comparing registrations to published papers is essential to research integrity - and almost no one does it routinely because it's slow, messy, and time-demanding.

RegCheck was built to help make this process easier.

Today, we launch RegCheck V2.

🧵

regcheck.app

Young carers' mental health: variation by gender, ethnicity, income and peer, school or social support: https://osf.io/zu2qk

Seven Symptoms Over Nearly 4,000 Days: Item-Level Variability in the Psychometric Properties of Daily Alcohol Use Disorder Symptoms in Young Adult Drinkers - Kevin M. King, Dahyeon Kang, Megan E. Schu... People experience symptoms of alcohol use disorders (AUD) in their daily lives, including more impairment-based symptoms (e.g., hazardous use, interpersonal pro...

I kept reading EMA studies claiming to test etiological theories of AUD, but I realized they never actually measured how people experience AUD in their daily lives. So we set out to see what we could learn with existing data.

1/19

journals.sagepub.com/doi/10.1177/...

So much for telehealth expanding access to care to rural and poor communities …

Heute haben über 400 Menschen für die Finanzierung der Psychotherapie-Weiterbildung in Frankfurt am Main demonstriert. Gemeinsam haben wir deutlich gemacht, dass die Politik endlich, wie im Koalitionsvertrag beschlossen, gesetzliche Regelungen zur Finanzierung der Weiterbildung schaffen muss.

@heikogiebler.bsky.social, Johannes Giesecke, @macartan.bsky.social, @swenhutter.bsky.social & @heikekluever.bsky.social: Mobilizing Europe’s citizens to take action on migration and climate change: behavioral evidence from 27 EU member states 🔗 www.tandfonline.com/doi/full/10....

If you want to hear me give a hands-on introduction to multiple imputation and the R-package mice, then join this workshop! You support a good cause in addition!🇺🇦

HiTOP 2026 Conference Call for Abstracts for the HiTOP 2026 conference

The HiTOP Society will have its first free-standing conference this year on June 4-6. The Call for Abstracts is now open, and we hope you'll consider submitting your HiTOP-related work!

www.hitop-system.org/hitop-2026-c...

Longitudinal Data Analysis Using R Amazon.com: Longitudinal Data Analysis Using R: 9798261825210: Cernat, Alexandru: Books

I’m happy to share that the print version of Longitudinal Data Analysis Using R is now available on Amazon — designed for teaching, applied research, and self-study.

👉 www.amazon.com/Longitudinal...

#rstats #HigherEd #Statistics #LongitudinalData #SocialScience #Statistics

YouTube video by Adam Kucharski How can we tell if one thing is causing another?

How do we know if one thing causes another? A (very) brief history of cause and effect, from stories about witchcraft to the science of clinical trials and observation studies: www.youtube.com/watch?v=6mlZ...

The German Research Foundation, possibly the most important funding body for academic research in Germany, is now not only allowing the use of AI to write applications, they‘ll also allow it to evaluate said applications. Only prerequisite is that one makes this transparent. It‘s a farce.