https://xitter.cf/t.co/vu1jo3uzR8 PhD candidate @EP_UCL | Decision-making, applied statistics, & meta-analysis | Open science | Previously @ResMaPsychology

London
Joined November 2018
New Cogsci preprint, "Introducing the Extinction Gambling Task," with Adam Harris, David Kellen, and @HenrikSingmann. We introduce a risky choice task in which participants can lose their (entire) bonus pay when choosing the risky option and drawing the extinction event.
1
7
2
16
5,285
Maximilian Maier 🔍 retweeted
In this article, Maier et al. show that metacognitive learning from consequences can shape moral decision-making. @MaxMa1er @vanessachg_ @FalkLieder @RtnlAltruismLab nature.com/articles/s41562-0…
5
18
1,876
Maximilian Maier 🔍 retweeted
Excited to share that our paper is now published in PNAS! pnas.org/doi/10.1073/pnas.24…
We updated this preprint (osf.io/preprints/psyarxiv/aj…) with a new study investigating sources of this yes-no framing bias and amplified omission bias in LLM moral decision-making. Results suggest that they likely arise from fine-tuning for chatbot applications. @MaxMa1er @FalkLieder
4
6
957
Maximilian Maier 🔍 retweeted
New preprint w/ @MaxMa1er, Harry Coulson & @FalkLieder: Telling people their global income rank (RBN) increased charitable donations. Also explored RBN’s effect on perceived global income distribution + whether asking how much others should donate increased giving (IDT) 🧵…
1
9
8
1,090
Maximilian Maier 🔍 retweeted
New preprint w/ @MaxMa1er, @vanessachg_, Fiery Cushman, & @FalkLieder: Disentangling Model-Based and Model-Free Moral Learning doi.org/10.31234/osf.io/azhn… Excited to present this work at #CogSci2025!
1
6
8
609
Maximilian Maier 🔍 retweeted
There is a major improvement to the RoBMA package. Model structure and parameters can be estimated within a single MCMC yielding a tremendous speedup! A Bayesian publication bias model-averaged meta-regression can be estimated in less than a minute now! (down from 30min)
3
3
1
22
1,630
Maximilian Maier 🔍 retweeted
We updated this preprint (osf.io/preprints/psyarxiv/aj…) with a new study investigating sources of this yes-no framing bias and amplified omission bias in LLM moral decision-making. Results suggest that they likely arise from fine-tuning for chatbot applications. @MaxMa1er @FalkLieder
New preprint with @MaxMa1er and @FalkLieder, titled "Large Language Models Amplify Human Biases in Moral Decision-Making." In this paper, LLMs and participants make decisions in realistic moral dilemmas. We found that LLMs exhibited stronger omission bias than participants.
6
1
9
2,455
For anyone who is still here, I am planning to mostly post on the other place from now on!
1
2
935
Maximilian Maier 🔍 retweeted
New Psychology Today post: "Failure to Replicate the Identified Victim Effect: We may need to rethink and reframe charitable-giving biases" Read: buff.ly/40jYoqA by Rajarshi Majumder, who led the project to a publication in JDM. Preprint: osf.io/ybz2a
1
17
1
34
5,750
Maximilian Maier 🔍 retweeted
🚨 Job alert 🚨 One more week to apply for two positions (PhD and Postdoc) at @arc_mpib and @mpib_berlin on using LLMs to improve generalizability in the behavioral and social sciences LLMs. The positions are fully funded for three years. Apply by October 13! Thank you for sharing!
1
48
2
133
23,948
New paper! The Replication Database: Documenting the Replicability of Psychological Science. Check a novel interactive platform hosting 1,239 originals paired w/ replication findings forrt-replications.shinyapps…. Published in @up_jopd led by @aufdroeseler doi.org/10.5334/jopd.101
4
55
4
150
23,230
Maximilian Maier 🔍 retweeted
Upcoming hybrid talk at HKU: "Metacognitive Moral Learning and Decision Making in Realistic Moral Dilemmas" by Max Maier & Vanessa Cheung from UCL Sept 13 1230–200pm HK time (GMT+8) HKU, Jockey Club Tower, 813 or join us on Zoom: hku.zoom.us/j/6985555998?pwd… (pass: psyc)
1
6
7
1,464
Maximilian Maier 🔍 retweeted
🚨New preprint!🚨Excited to share my 1st PhD project with @BonanZhao @cocosci_lab @natvelali Teaching is a powerful way to pass on "tools for thought" to solve new problems. How well do existing teaching models of teaching capture this process? Link: osf.io/preprints/psyarxiv/zx…
3
17
3
67
12,429
We updated our preprint on moral learning, now titled "Metacognitive Learning from Consequences of Past Choices Shapes Moral Decision-Making," with three new experiments and computational modeling to capture differences in individual learning styles. @vanessachg_ @FalkLieder
1
6
12
1,180
Lastly, to address potential demand characteristics, we recruited participants for a study with the learning task and then recruited the same participants for a second study with the transfer measures. Ps did not know that the two studies were related (more details in Methods).
1
108
Using this design, we again replicated the transfer effects on moral convictions and donation decisions between the two independent studies. For more details see our preprint: osf.io/preprints/psyarxiv/gj…
81