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Attila Krajcsi

@krajcsi.bsky.social
222 followers 202 following 12 posts

Cognitive psychologist, interested in numerical cognition and methodological problems. www.thenumberworks.org

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Attila Krajcsi @krajcsi.bsky.social · 03/06/2026
You can still submit your presentation about data analysis and statistics in behavioral and related sciences to our local international symposium in Pécs, Hungary, in September 2026. www.cogstat.org/best_approac...
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Attila Krajcsi @krajcsi.bsky.social · 30/03/2026
Can you tell which line below is longer? No? Then maybe humans cannot discriminate similar numbers with an approximate mental mechanism either. Read more about it at osf.io/6m4zw
Two horizontal lines with similar length
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Attila Krajcsi @krajcsi.bsky.social · 23/03/2026
In a number comparison task, the size effect is, in fact, at least three distinct size effects with three corresponding generators. See more details about the anatomy of the number comparison size effect at doi.org/10.3758/s134...
doi.org
Different sources of the numerical comparison size effect - Memory & Cognition
In symbolic number comparison tasks, the numerical distance and size effects are largely influenced by the statistical properties of the stimuli. Here, we tested whether nonsymbolic number comparison ...
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Attila Krajcsi @krajcsi.bsky.social · 16/03/2026
The Approximate Number System account assumes an imprecise mechanism behind the precise symbolic number comparison. This leads to various contradictions in the model. Read more about it at osf.io/6m4zw.
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Attila Krajcsi @krajcsi.bsky.social · 04/03/2026
Different evaluation methods may categorize subset-knowers as CP-knowers and the other way around. Picture below: how various methods categorize children differently. See details in psyarxiv.com/cz9ug
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Attila Krajcsi @krajcsi.bsky.social · 21/01/2026
Optimizing a design for correlation may be bad for a design for comparing groups or conditions. And the other way around. osf.io/mu896
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Attila Krajcsi @krajcsi.bsky.social · 07/01/2026
The evaluation method of the Give-a-Number task matters. See a comparison of different methods in doi.org/10.23668/psy...
Calculated number knowledge (y-axis) measured with the GaN task as a function of evaluation methods (x-axis)
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Attila Krajcsi @krajcsi.bsky.social · 29/10/2025
The SNARC effect may work only with symbolic numbers. It seems to work with nonsymbolic numbers when the task requires symbolic responses, such as "smaller"-"larger", but not without them. doi.org/10.1037/xhp0... or www.thenumberworks.org/discrete_sem...
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Reposted by Attila Krajcsi
Society for the Improvement of Psychological Science (SIPS) @improvingpsych.org · 20/08/2025
More info about changes to moderation at PsyArXiv - improvingpsych.org/2025/08/20/c...
improvingpsych.org
Changes to Moderation at PsyArXiv Preprints
As you may be aware, a large number of previously-public preprints posted on PsyArXiv have become inaccessible in the past 24 hours. We know this is disruptive to many people and organizations who …
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Reposted by Attila Krajcsi
Dirk Gütlin @gutlin.bsky.social · 20/08/2025
That's exactly the research we need for AI! Glad to see work like that! 👍
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Attila Krajcsi @krajcsi.bsky.social · 05/05/2025
Reliability paradox. It is not a paradox. osf.io/mu896_v1
osf.io
OSF
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Reposted by Attila Krajcsi
CogStat @cogstat.bsky.social · 05/07/2024
CogStat in the wild. Jedis (see the bottom of the poster) are using CogStat. Regression charts are made with CogStat. May the force be with you, too! cogstat.org
Scientific poster about using functional and structural brain imaging to understand mathematical problem-solving
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Reposted by Attila Krajcsi
CogStat @cogstat.bsky.social · 04/07/2024
4th Best Approaches in Data Analysis and Statistics Symposium September 5-6, 2024, University Of Szeged, Hungary Talks and hands-on tutorials on old/new methods, computational tools, software solutions, deep learning, ai www.cogstat.org/best_approac...
4th Best Approaches in Data Analysis and Statistics Symposium flyer
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CogStat @cogstat.bsky.social · 28/05/2024
The release candidate of the upcoming 2.5 version of #CogStat is available at github.com/cogstat/cogs.... Give us feedback about the new version.
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Reposted by Attila Krajcsi
PsyArXivBot @psyarxivbot.bsky.social · 27/05/2024
Procedure for writing multi-author consensus manuscripts: proposal and reflections on implementation: osf.io/sdauf
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Reposted by Attila Krajcsi
CogStat @cogstat.bsky.social · 18/04/2024
The beta of the upcoming 2.5 version of #CogStat is available at github.com/cogstat/cogs.... Give us feedback about the new version.
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Reposted by Attila Krajcsi
David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 20/03/2024
New paper! Multi-year controlled #SciComm experiment finds that tweeting about published papers does NOT lead to an increase in citations of those papers. Led by @trevorabranch.bsky.social , featuring me @melissacmarquez.bsky.social @solomonrdavid.bsky.social @danirabaiotti.bsky.social & others 🧪
journals.plos.org
Controlled experiment finds no detectable citation bump from Twitter promotion
Multiple studies across a variety of scientific disciplines have shown that the number of times that a paper is shared on Twitter (now called X) is correlated with the number of citations that paper r...
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Attila Krajcsi @krajcsi.bsky.social · 18/03/2024
Do you plan to measure Approximate Number System in children? Check recommendations at doi.org/10.1016/j.dr... by @krajcsi.bsky.social D Chesney @krzysztofcipora.bsky.social @coolenilse.bsky.social @camillakgilmore.bsky.social @mjinglis.bsky.social M Libertus @tuebang.bsky.social V Simms, B Reynvoet
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CoolenIlse @coolenilse.bsky.social · 18/10/2023
New preprint on measuring the acuity of the ANS in children is out! A collaboration pulled together by Attila Krajcsi and Bert Reynvoet, with Dana Chesney, Krzysztof Cipora, @camillakgilmore.bsky.social, @minglis.bsky.social, Melissa Libertus, Hans-Christoph Nuerk,& Vic Simms osf.io/preprints/ps...
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CogStat @cogstat.bsky.social · 03/12/2023
The CogStat adaptation of Danielle Navarro’s Learning Statistics with R (by Róbert Fodor) has seen its second edition. Enjoy! learningstatisticswithcogstat.com
Cover of the book
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Reposted by Attila Krajcsi
CogStat @cogstat.bsky.social · 03/12/2023
The latest 2.4.1 release is available for download with tons of improvements. Check the new features at github.com/cogstat/cogs... . Download CogStat from cogstat.org!
cogstat.org
CogStat - Analyze your data more efficiently
CogStat is an easy to use statistical analysis software.
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Reposted by Attila Krajcsi
Nature Portfolio @natureportfolio.nature.com · 10/11/2023
A Nature Human Behaviour paper reports on four labs discovering and replicating 16 novel findings with practices such as preregistration, large sample sizes and replication fidelity. The findings suggest that with best practices, high replicability is achievable. go.nature.com/3SIgoXM 🧪
This is figure 2, which shows difference in effect size estimates between self- and independent replications for 16 new discoveries in the social-behavioural sciences, compared with initial confirmation study effect size estimates.
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Reposted by Attila Krajcsi
RoSE Network @rosenetwork.bsky.social · 08/11/2023
📢CALL FOR COLLABORATORS!📢 A RoSE member is keen to hear from other researchers interested in collaborating on a project that tests the efficiency of automatic analysis software, such as www.cogstat.org, against other software. #StatsEd #Stats Contact krajcsi[at]gmail[dot]com for information.
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