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Large language models show amplified cognitive biases in moral decision-making

Vanessa Cheung, Maximilian Maier, Falk Lieder · 2025

Cheung, Maier & Lieder (2025): LLMs versus people in moral dilemmas. Runnable replay: Study 1 moral dilemmas (13, sequential) and Study 2 (six dilemmas x three framings). Studies 3, 4 and the collective action problems are described in the program but not runnable.

The recommended Human Program is available in the desktop research library.

What you can do with it

Read and search the study
Yes
Run AI participants
Partly
1 part(s) of the paper cannot be run; see excluded
Original human data
Partly
source pinned in package/cheung2025moral/human/key.json (2 of 2 data files downloadable from it)
Paper's results recovered from the human data
Yes
1 of 1 reported results recovered by the package analysis from the connected human data
Authors' analysis code
No
no author-code key recorded
  • Not runnable: studies 1-2: The paper's respondents include LLMs as well as people; the human-versus-LLM ANOVAs are not computed.
  • Not in the human data: s1_moral_sequential: Study 1 human data (N = 285, 13 sequential dilemmas) are not in human-data; data_p.csv is Study 2 only.