Daniel Heck
Professor of Psychological Methods @Phillips-Universtät Marburg
Mathematical psychology | Cognitive modeling | Psychometrics | Bayesian statistics
Personal: www.dwheck.de
Team: uni-marburg.de/de/fb04/team-heck
- Reposted by Daniel HeckDoes it make sense to preregister simulation studies? This question has sparked a lot of debate. ▶️We* work through the why, when, and how ▶️We discuss different phases of methodological research to clarify where preregistration might (or might not) add value 📝 Preprint: doi.org/10.31234/osf...
- Finally published in Memory & Cognition: Multinomial models of the repetition-based truth effect: Investigating the role of prior knowledge link.springer.com/article/10.3...
- 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.”
- Analyzing Binary Judgments: A Comparison of ANOVA, Signal Detection Theory, and Generalized Linear Mixed Models in the Context of the Illusory Truth Effect: osf.io/xn397
- Link to preprint: osf.io/preprints/ps...
- Interesting postdoc position on modeling psychological resilience at the DKFZ Hector Cancer Institute, Mannheim: jobs.dkfz.de/en/jobs/1682... --> dynamic/latent-variable models, Bayesian hierarchical models, causal inference, time-series analysis, cognitive modelling
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- Reposted by Daniel HeckStill think this was one of the best power moves of all time www.sciencedirect.com/science/arti...
- New paper by @matzekloft.bsky.social in Psychometrika🎉 We developed a model for aggregating response intervals which are obtained if a participant judges that the word "most" covers the range [86% - 97%]. The model aggregates such intervals while considering people's proficiency & item difficulty.
- Halloween in our lab 🎃 Beware of divergent transitions!
- Reposted by Daniel HeckThere still seems to be a lot of confusion about significance testing in psych. No, p-values *don’t* become useless at large N. This flawed point also used to be framed as "too much power". But power isn't the problem – it's 1) unbalanced error rates and 2) the (lack of a) SESOI. 1/ >
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- Welcome to @lauragroot.bsky.social as a new member in the Psychological Methods Lab at @unimarburg.bsky.social! 🎉 Laura just started as a PhD student and will work on Bayesian statistics and multinomial processing tree (MPT) modeling.
- Reposted by Daniel HeckWe built the openESM database: ▶️60 openly available experience sampling datasets (16K+ participants, 740K+ obs.) in one place ▶️Harmonized (meta-)data, fully open-source software ▶️Filter & search all data, simply download via R/Python Find out more: 🌐 openesmdata.org 📝 doi.org/10.31234/osf...
- Welcome to @timangelike.bsky.social as a new member of our lab at @unimarburg.bsky.social! 🎉 Tim just started as a postdoc in a Momentum project funded by @volkswagenstiftung.de: "Bridging the Gap Between Verbal Psychological Theories and Formal Statistical Modeling with Large Language Models"
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- Reposted by Daniel HeckFor all who use Bayesian hierarchical models, have a look at our new preprint, out now together with @linushof.bsky.social @nunobusch.bsky.social and @thorstenpachur.bsky.social osf.io/preprints/ps...
- New paper showing that both the test–retest stability and the split-half reliability of the repetition-based truth effect is close to zero: www.sciencedirect.com/science/arti...
- Reposted by Daniel HeckAt the FORRT Replication Hub, our mission is to support researchers who want to replicate previous findings. We have now published a big new component with which we want to fulfill this mission: An open access handbook for reproduction and replication studies: forrt.org/replication_...
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- "Science is expected to be precise, and admissions of uncertainty (especially large levels) can be perceived as scientific failures, rather than natural limitations of knowledge of a topic." 😕 Broomell et al. (2025). Expert judgment and communication of uncertainty. doi.org/10.1007/978-...
- Just submitted a minor bugfix of RRreg to CRAN: github.com/danheck/RRre... The R package focuses on analyzing univariate & multivariate data collected with the Randomized Response Technique (RRT), which protects anonymity in surveys by randomly scrambling responses. I also added a new logo 🚀
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- Reposted by Daniel HeckEin ganz ganz wichtiger Text in diesen Zeiten. "Die vorliegende Kampagne gegen eine deutsche Top-Juristin ist nichts anderes als ein weiterer Versuch der Trumpisierung deutscher Politik. [...] es liegt kurzum an wirklich allen Demokraten, dies nicht zuzulassen." 👊
- Yet another checklist for science 🚀 ✅A checklist... ✅for incentivizing... ✅and facilitating... ✅good theory building ✅https://osf.io/preprints/osf/7qvfz_v2 Luckily enough, we can nowadays use AI to fill out all the checklists during the research process 😅
- Reposted by Daniel HeckHere's a paper with a skeleton of the idea, but there is really lots of research to do on the structure of workflow networks, now to make them robust, how to development diagnostics and calculi for steps within them. doi.org/10.1073/pnas...
- Reposted by Daniel HeckExperimentology is out today!!! A group of us wrote a free online textbook for experimental methods, available at experimentology.io - the idea was to integrate open science into all aspects of the experimental workflow from planning to design, analysis, and writing.
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- Reposted by Daniel HeckA few months ago, Nature published how-to guide for using ChatGPT to write your peer reviews in 30 minutes. This is, of course, a horrible idea. Here’s my response with @jbakcoleman.bsky.social .
- Paper by @lknochelmann.bsky.social now published in the European Journal of Social Psychology 🥳 In an intervention tournament, we investigated how to best enhance a person’s intellectual humility. --> doi.org/10.1002/ejsp...
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- New paper by my PhD student @semihaktepe.bsky.social now published 🚀 "Revisiting the effect of discrepant perceptual fluency on truth judgments" tinyurl.com/2eepue5y --> Two experiments & a meta-analysis indicate that high visual contrast does not lead to higher truth judgments.
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- Great overview of benefits/drawbacks of LLMs for writing & coding👏 "Writing is hard because the process of getting something onto the page helps us figure out what we think—about a topic, a problem or an idea. If we turn to AI to do the writing, we’re not going to be doing the thinking either."
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- 🚀Postdoc position @unimarburg.bsky.social in the project: "Bridging the Gap Between Verbal Psychological Theories & Formal Statistical Modeling with Large Language Models" (funded by @volkswagenstiftung.de) 📅Start: 01.10.2025 | ⏳4 years 🔗 Apply now: uni-marburg.de/jhbCen 🔄 Thanks for sharing!
- German job posting: uni-marburg.de/aUFIpw
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- Great paper. I especially liked this quote: "All we can do is postulate (often blatantly wrong) theories and rigorously analyze their explanatory scope and limits."
- NEW paper! 💭🖥️ “Combining Psychology with Artificial Intelligence: What could possibly go wrong?” — Brief review paper by @olivia.science & myself, highlighting traps to avoid when combining Psych with AI, and why this is so important. Check out our proposed way forward! 🌟💡 osf.io/preprints/ps...
- Reposted by Daniel HeckThis is a must-read. Csaba Szabó, the author of Unreliable, was approached by a paper mill, and he decided to conduct a sting operation. He documented how paper mills operate. forbetterscience.com/2025/05/19/a...
- 🚀 PhD Position in Psychological Methods at @unimarburg.bsky.social 📅 Start: 01.10.2025 | 💼 50% TV-H E13 | ⏳ 3 years Focus on statistical modeling—Bayesian statistics, cognitive modeling, psychometrics. 🔗 Apply now: uni-marburg.de/r5dKTr 🔄 Thanks for sharing!
- Reposted by Daniel Heck🚨 REPLICATION REPORT UPDATE: One year ago, a tweet by John Holbein alerted me, @ollefolke.bsky.social, and @jopieboy.bsky.social to a paper with a shocking result about Sweden’s law criminalizing the purchase of sex.🧵
- Great new preprint about the difficulties of estimating the centrality of individualized dynamic networks led by my PhD student @bsiepe.bsky.social 🥳
- Can we use features of dynamic networks (e.g. centrality) to improve treatment selection and outcome prediction? New preprint on the topic: We highlight the role of uncertainty & introduce a Bayesian multilevel approach for uncertainty quantification of network features 🧵 osf.io/preprints/ps...
- Reposted by Daniel HeckHoney, we fixed Signal Detection Theory (SDT)! In this preprint, Constantin Meyer-Grant, David Kellen, Sam Harding, and I critically evaluate the (unequal-variance) Gaussian SDT model in recognition memory and pursue the Gumbel-min model as a principled alternative: doi.org/10.31234/osf... 🧵
- I am looking forward to expanding the scope of my professorship by combining cognitive and statistical modeling with LLMs😊 There will be two job openings for postdoc positions soon - one starting in September 2025 and another one a year later.
- 🚀 930.000 Euro für #Psychologie -Forschung: Prof. Daniel Heck nutzt #KI, um psychologische Theorien präziser zu machen. Mithilfe von #LLMs sollen unscharfe Begriffe in messbare Modelle übersetzt werden – ein Schritt zu besseren Experimenten & klareren Erkenntnissen #Forschung uni-marburg.de/gDNQIi
- Reposted by Daniel HeckPowerful message from #teap2025 key organizer @melissavo.bsky.social solidarity for science!
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- New preprint by my PhD student @semihaktepe.bsky.social: Revisiting the Effect of Discrepant Perceptual Fluency on Truth Judgments osf.io/preprints/ps... We could not replicate the effect that higher color contrast results in higher truth judgments in two online experiments (N=98 and N=294).
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- Reposted by Daniel Heck🏰 PhD position on computational modelling | collective dynamics | cultural evolution 🏰 Get in touch with any questions you might have and join me in beautiful Marburg! stellenangebote.uni-marburg.de/jobposting/c... (Deutsch) stellenangebote.uni-marburg.de/jobposting/3... (English)
- My former PhD @dominikdeffner.bsky.social is now a professor and is looking for a PhD student. Know someone who would fit? stellenangebote.uni-marburg.de/jobposting/3...
- Finally published online at the Journal of Personality and Social Psychology 🥳 "Cheat, cheat, repeat: On the consistency of dishonest behavior in structurally comparable situations" Journal: doi.org/10.1037/pspp... Preprint: osf.io/preprints/ps...
- New pulication in JPSP with Isabel Thielmann, Benjamin Hilbig & @schildchristoph.bsky.social Cheat, cheat, repeat: On the consistency of dishonest behavior in structurally comparable situations doi.org/10.31234/osf... --> incentivized dishonest behavior is consistent across 5 weeks & 3 years
- New paper published in Psychonomic Bulletin & Review 🥳 doi.org/10.3758/s134...
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- Now published in Educational and Psychological Measurement: journals.sagepub.com/doi/10.1177/...
- Reposted by Daniel HeckSimulation studies are essential for methods research. How well are they conducted & reported? How can we improve their quality? Out now in Psychological Methods, see 🧵 below. With @fbartos.bsky.social, @timpmorris.bsky.social, @boulesteixlaure.bsky.social, @danielheck.bsky.social & Samuel Pawel
- We reviewed 100 psych. simulation studies & find room for improvement in planning/reporting. As a remedy, we (František Bartoš, @timpmorris.bsky.social Anne-Laure Boulesteix, @danielheck.bsky.social & Samuel Pawel) present ADEMP-PreReg, a simulation study preregistration & reporting template 🧵/1
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- New pulication in JPSP with Isabel Thielmann, Benjamin Hilbig & @schildchristoph.bsky.social Cheat, cheat, repeat: On the consistency of dishonest behavior in structurally comparable situations doi.org/10.31234/osf... --> incentivized dishonest behavior is consistent across 5 weeks & 3 years
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- New publication 🥳 "Personality traits (un)related to dishonest behavior" (with Benjamin Hilbig & Isabel Thielmann) --> HEXACO Honesty-Humility is a robust predictor of incentivized, dishonest behavior which is not the case for Big-5 Agreeableness. journals.sagepub.com/doi/full/10....
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