Julia Haaf
@juliaha.bsky.social
Professor of Psych Methods, Evaluation and Statistics at the University of Potsdam. Bayesian modeling, experimental psychology, and cats. But mainly cats. She/her.
Reposted by Julia Haaf
The Netherlands Food and Consumer Product Authority at the Netherlands Food and Consumer Product Authority is looking for an applied statistician with expertise in Bayesian statistics or causal inference
statmodeling.stat.columbia.edu/2025/11/03/t...
statmodeling.stat.columbia.edu/2025/11/03/t...
The Netherlands Food and Consumer Product Authority at the Netherlands Food and Consumer Product Authority is looking for an applied statistician with expertise in Bayesian statistics or causal infer...
statmodeling.stat.columbia.edu
November 3, 2025 at 9:31 PM
The Netherlands Food and Consumer Product Authority at the Netherlands Food and Consumer Product Authority is looking for an applied statistician with expertise in Bayesian statistics or causal inference
statmodeling.stat.columbia.edu/2025/11/03/t...
statmodeling.stat.columbia.edu/2025/11/03/t...
Reposted by Julia Haaf
formalizing this process is fraught. This requires a bottom up cultural change starting with doctoral training. Top down impositions such as citation diversity statements come with a lot of other risks.
October 26, 2025 at 3:05 PM
formalizing this process is fraught. This requires a bottom up cultural change starting with doctoral training. Top down impositions such as citation diversity statements come with a lot of other risks.
In serious fall mood over here. 🍁🍂
Chestnuts, pumpkins, walks in the forest, please!
youtu.be/DnKOzdEa80A?...
Chestnuts, pumpkins, walks in the forest, please!
youtu.be/DnKOzdEa80A?...
Billie Eilish - Bad Guy (Pumpkin Cover)
YouTube video by Pupsi
youtu.be
October 13, 2025 at 6:37 PM
In serious fall mood over here. 🍁🍂
Chestnuts, pumpkins, walks in the forest, please!
youtu.be/DnKOzdEa80A?...
Chestnuts, pumpkins, walks in the forest, please!
youtu.be/DnKOzdEa80A?...
Sometimes my cat sounds like someone forgot to turn off the vibration alarm on their phone...
September 27, 2025 at 9:21 PM
Sometimes my cat sounds like someone forgot to turn off the vibration alarm on their phone...
Reposted by Julia Haaf
Call for collaborators! 🧵
The TL;DR: we seek collaborators on a #ManyLabs #RegisteredReport about what causes rapid forgetting.
In-principle accepted Stage 1: osf.io/ahjn5
Expressions of interest: cardiffunipsych.eu.qualtrics.com/jfe/form/SV_...
Further details in the 🧵:
The TL;DR: we seek collaborators on a #ManyLabs #RegisteredReport about what causes rapid forgetting.
In-principle accepted Stage 1: osf.io/ahjn5
Expressions of interest: cardiffunipsych.eu.qualtrics.com/jfe/form/SV_...
Further details in the 🧵:
September 26, 2025 at 11:57 AM
Call for collaborators! 🧵
The TL;DR: we seek collaborators on a #ManyLabs #RegisteredReport about what causes rapid forgetting.
In-principle accepted Stage 1: osf.io/ahjn5
Expressions of interest: cardiffunipsych.eu.qualtrics.com/jfe/form/SV_...
Further details in the 🧵:
The TL;DR: we seek collaborators on a #ManyLabs #RegisteredReport about what causes rapid forgetting.
In-principle accepted Stage 1: osf.io/ahjn5
Expressions of interest: cardiffunipsych.eu.qualtrics.com/jfe/form/SV_...
Further details in the 🧵:
It is a common theme in academia to forget that faculty also get paid to do research and write papers. Getting paid doesn't mean no intellectual contribution to a paper, otherwise unpaid interns would be the only authors on papers.
Someone asked us (neuromatch.social/@tenzingCont...): if you are paid to do data collection, are you qualified to be an author?
Let me know your thoughts! Here is my draft of an answer:
Taking on just the service-for-payment dimension of this for now,
Let me know your thoughts! Here is my draft of an answer:
Taking on just the service-for-payment dimension of this for now,
tenzing and contributorship (@tenzingContrib@neuromatch.social)
172 Posts, 83 Following, 126 Followers · We (https://contributorshipcollaboration.github.io/) are working on initiatives to shift science from traditional authorship to contributorship. For example, w...
neuromatch.social
September 22, 2025 at 5:04 AM
It is a common theme in academia to forget that faculty also get paid to do research and write papers. Getting paid doesn't mean no intellectual contribution to a paper, otherwise unpaid interns would be the only authors on papers.
Reposted by Julia Haaf
Join our interdisciplinary team that combines computational linguistics with cognitive neuroscience! Our center is located in the beautiful Trentino region.
#CallforExpressionofInterest
Tenure-Track Assistant Professor in Computational Linguistics at the CLIC Lab, @cimecunitrento.bsky.social
📅Deadline: September 14, 2025
📍 Rovereto, Italy
🔗More info: shorturl.at/EnvLy
@szymanikjakub.bsky.social
Tenure-Track Assistant Professor in Computational Linguistics at the CLIC Lab, @cimecunitrento.bsky.social
📅Deadline: September 14, 2025
📍 Rovereto, Italy
🔗More info: shorturl.at/EnvLy
@szymanikjakub.bsky.social
September 5, 2025 at 5:06 AM
Join our interdisciplinary team that combines computational linguistics with cognitive neuroscience! Our center is located in the beautiful Trentino region.
Why is it that everyone on the internet seems to be so damn comfortable with prior/posterior plots using ggplot that do not use the same y-axis density values. Drives me nuts. Sunday rant over.
August 24, 2025 at 6:09 PM
Why is it that everyone on the internet seems to be so damn comfortable with prior/posterior plots using ggplot that do not use the same y-axis density values. Drives me nuts. Sunday rant over.
Reposted by Julia Haaf
Help us show there is support for offering registered reports at one of Psychology's leading method's journal! chng.it/TwwnVBScVb
Adopt Registered Reports at Psychological Methods
Can you spare a minute to help this campaign?
chng.it
August 21, 2025 at 6:44 PM
Help us show there is support for offering registered reports at one of Psychology's leading method's journal! chng.it/TwwnVBScVb
Reposted by Julia Haaf
Three of my collaborators have COVID RIGHT NOW 😷 😷 😷
I will die on this hill:
it isn’t hard to say “at the height of the pandemic” or “at the start of COVID” during a podcast interview. Producers, hosts, don’t let your guests say “during COVID” like this thing is over. Correct them. Ask them to say the sentence again. This is your job.
it isn’t hard to say “at the height of the pandemic” or “at the start of COVID” during a podcast interview. Producers, hosts, don’t let your guests say “during COVID” like this thing is over. Correct them. Ask them to say the sentence again. This is your job.
August 21, 2025 at 4:37 AM
Three of my collaborators have COVID RIGHT NOW 😷 😷 😷
Reposted by Julia Haaf
A lot of educators treat being overworked as a sign of virtue or commitment to excellence. It might just be a sign our institutions are understaffed, underfunded, and don't prioritize teaching, teachers, and learning in their budgets. And self-congratulation doesn't pay the bills.
August 16, 2025 at 5:57 PM
A lot of educators treat being overworked as a sign of virtue or commitment to excellence. It might just be a sign our institutions are understaffed, underfunded, and don't prioritize teaching, teachers, and learning in their budgets. And self-congratulation doesn't pay the bills.
Reposted by Julia Haaf
Do kids show adult-like working memory patterns?
🧠 We analyzed nearly 1M observations from 9K+ Dutch students in a real-world adaptive learning platform.
✅ Benchmark effects in children
📊 Bayesian modeling + big adaptive data = new insights
⬇️ Authors & links
#WorkingMemory #DevPsych
🧠 We analyzed nearly 1M observations from 9K+ Dutch students in a real-world adaptive learning platform.
✅ Benchmark effects in children
📊 Bayesian modeling + big adaptive data = new insights
⬇️ Authors & links
#WorkingMemory #DevPsych
APA PsycNet
psycnet.apa.org
June 23, 2025 at 11:26 AM
Do kids show adult-like working memory patterns?
🧠 We analyzed nearly 1M observations from 9K+ Dutch students in a real-world adaptive learning platform.
✅ Benchmark effects in children
📊 Bayesian modeling + big adaptive data = new insights
⬇️ Authors & links
#WorkingMemory #DevPsych
🧠 We analyzed nearly 1M observations from 9K+ Dutch students in a real-world adaptive learning platform.
✅ Benchmark effects in children
📊 Bayesian modeling + big adaptive data = new insights
⬇️ Authors & links
#WorkingMemory #DevPsych
How can we achieve good measurement of attentional control? Much of the debate around this question has focused on methodological issues, most prominently the reliability paradox. Sure, reliability is important (and we critically review all recent developments).
How can we achieve a good measurement of attentional control?: https://osf.io/ugk4h
August 16, 2025 at 6:40 AM
How can we achieve good measurement of attentional control? Much of the debate around this question has focused on methodological issues, most prominently the reliability paradox. Sure, reliability is important (and we critically review all recent developments).
Reposted by Julia Haaf
PsyArXiv is seeking new moderators to help combat an increase in AI submissions! If you've ever posted a preprint to PsyArXiv, please consider joining. Minimum commitment 1h/month, there's a training session this Monday @ 1pm ET. More info here: forms.gle/9LB1rEtxHAeZ... #PsychSciSky
Expression of Interest in Serving as a PsyArXiv Moderator
As you might have heard, PsyArXiv is having some issues with an increase in low-quality submissions, ranging from AI generated manuscripts to inflate citation metrics, incoherent or nonsensical docume...
forms.gle
August 15, 2025 at 5:31 PM
PsyArXiv is seeking new moderators to help combat an increase in AI submissions! If you've ever posted a preprint to PsyArXiv, please consider joining. Minimum commitment 1h/month, there's a training session this Monday @ 1pm ET. More info here: forms.gle/9LB1rEtxHAeZ... #PsychSciSky
Reposted by Julia Haaf
New paper with @richarddmorey.bsky.social now out in JASA, where we critically examine p-curve. Below is Richard’s excellent summary of the many poor statistical properties of p-curve (with link to paper). I wanted to add some conceptual issues that we also tackle in the paper.
Paper drop, for anyone interested in #metascience, #statistics, or #metaanalysis! @clintin.bsky.social and I show in a new paper in JASA that the P-curve, a popular forensic meta-analysis method, has deeply undesirable statistical properties. www.tandfonline.com/doi/full/10.... 1/?
August 9, 2025 at 9:18 PM
New paper with @richarddmorey.bsky.social now out in JASA, where we critically examine p-curve. Below is Richard’s excellent summary of the many poor statistical properties of p-curve (with link to paper). I wanted to add some conceptual issues that we also tackle in the paper.
Reposted by Julia Haaf
Paper drop, for anyone interested in #metascience, #statistics, or #metaanalysis! @clintin.bsky.social and I show in a new paper in JASA that the P-curve, a popular forensic meta-analysis method, has deeply undesirable statistical properties. www.tandfonline.com/doi/full/10.... 1/?
August 8, 2025 at 6:56 PM
Paper drop, for anyone interested in #metascience, #statistics, or #metaanalysis! @clintin.bsky.social and I show in a new paper in JASA that the P-curve, a popular forensic meta-analysis method, has deeply undesirable statistical properties. www.tandfonline.com/doi/full/10.... 1/?
Reposted by Julia Haaf
I have yet to read a single story about men adopting AI at work (without being told) at a higher rate than women that presents it as anything other than men being smart. Not one story about how it implies they're lazier and less ethical.
Because that's not the narrative that's being pushed about AI.
Because that's not the narrative that's being pushed about AI.
July 26, 2025 at 4:14 PM
I have yet to read a single story about men adopting AI at work (without being told) at a higher rate than women that presents it as anything other than men being smart. Not one story about how it implies they're lazier and less ethical.
Because that's not the narrative that's being pushed about AI.
Because that's not the narrative that's being pushed about AI.
Today I taught my last class for this semester. Next time teaching is April 2026. 🥳🥳🥳 (Don't get me wrong, I like teaching. But time for research is exciting!)
July 17, 2025 at 3:57 PM
Today I taught my last class for this semester. Next time teaching is April 2026. 🥳🥳🥳 (Don't get me wrong, I like teaching. But time for research is exciting!)
I recently taught a course on minimizing mistakes in science. The most convincing argument to my masters students was that you never check mistakes that support the expected outcome, you only check if the outcome is unexpected. That's a hugely important bias!
1/5 For upcoming work I lately read some articles on handling mistakes in science. They share an important consensus I think everyone should know:
Mistakes are a failure of systems, not people. In a working system, making a mistake is normal, but inconsequential. 🧵
Mistakes are a failure of systems, not people. In a working system, making a mistake is normal, but inconsequential. 🧵
July 14, 2025 at 8:38 PM
I recently taught a course on minimizing mistakes in science. The most convincing argument to my masters students was that you never check mistakes that support the expected outcome, you only check if the outcome is unexpected. That's a hugely important bias!
Reposted by Julia Haaf
1/5 For upcoming work I lately read some articles on handling mistakes in science. They share an important consensus I think everyone should know:
Mistakes are a failure of systems, not people. In a working system, making a mistake is normal, but inconsequential. 🧵
Mistakes are a failure of systems, not people. In a working system, making a mistake is normal, but inconsequential. 🧵
July 14, 2025 at 4:38 PM
1/5 For upcoming work I lately read some articles on handling mistakes in science. They share an important consensus I think everyone should know:
Mistakes are a failure of systems, not people. In a working system, making a mistake is normal, but inconsequential. 🧵
Mistakes are a failure of systems, not people. In a working system, making a mistake is normal, but inconsequential. 🧵
Reposted by Julia Haaf
#workingmemory researchers! It's time to nominate all of our brilliant and wonderful female colleagues for the 2025 #WomWoM research fairy award! 🧚♀️🪄 Please share widely -- deadline 2nd August! bit.ly/2025womwomfa...
The 2025 WomWoM research fairy award
Welcome, fellow working memory researchers! It's time to decide who should be this year's research fairy.
If you are not yet aware of the story about this award or would like a refresher, please che...
bit.ly
July 1, 2025 at 6:01 PM
#workingmemory researchers! It's time to nominate all of our brilliant and wonderful female colleagues for the 2025 #WomWoM research fairy award! 🧚♀️🪄 Please share widely -- deadline 2nd August! bit.ly/2025womwomfa...
Happy to share the publication of the Attentional Control Data Collection (ACDC⚡) at Behavior Research Methods. We have collected 64 data sets on congruency effects in an SQLite database. The database will hopefully grow soon, but working with open data is actually pretty complicated. rdcu.be/ethPM
Attentional control data collection: A resource for efficient data reuse
rdcu.be
June 25, 2025 at 8:18 AM
Happy to share the publication of the Attentional Control Data Collection (ACDC⚡) at Behavior Research Methods. We have collected 64 data sets on congruency effects in an SQLite database. The database will hopefully grow soon, but working with open data is actually pretty complicated. rdcu.be/ethPM
Please check out this work by @seymaertekin.bsky.social et al. where we studied key empirical benchmarks of working memory in a large-scale sample of elementary school students. This type of data is AWESOME because you can get a lot of clarity - as long as you don't go down any rabbit holes...
Do kids show adult-like working memory patterns?
🧠 We analyzed nearly 1M observations from 9K+ Dutch students in a real-world adaptive learning platform.
✅ Benchmark effects in children
📊 Bayesian modeling + big adaptive data = new insights
⬇️ Authors & links
#WorkingMemory #DevPsych
🧠 We analyzed nearly 1M observations from 9K+ Dutch students in a real-world adaptive learning platform.
✅ Benchmark effects in children
📊 Bayesian modeling + big adaptive data = new insights
⬇️ Authors & links
#WorkingMemory #DevPsych
APA PsycNet
psycnet.apa.org
June 23, 2025 at 1:33 PM
Please check out this work by @seymaertekin.bsky.social et al. where we studied key empirical benchmarks of working memory in a large-scale sample of elementary school students. This type of data is AWESOME because you can get a lot of clarity - as long as you don't go down any rabbit holes...
Who here has the best commute? (Spoiler: it's me. Try and convince me otherwise.)
Let me show you. Here is one of the THREE castles I am passing every day.
Let me show you. Here is one of the THREE castles I am passing every day.
April 15, 2025 at 2:24 PM
Who here has the best commute? (Spoiler: it's me. Try and convince me otherwise.)
Let me show you. Here is one of the THREE castles I am passing every day.
Let me show you. Here is one of the THREE castles I am passing every day.