APS

2026 APS Annual Convention · 2026

The Structure, Inflation, and Malleability In Large Language Models’ Representations of Human Self–Other Personality Judgments.

Barcelona, Spain · May 2026

Posters · Digital Life & Emerging Technology in Psychology

  • Xiong Hu
    Heidelberg University, Germany
  • Josué Garcia-Arch
    Heidelberg University
  • Josué Garcia-Arch
    Institute of Neuroscience, Universitat de Barcelona
  • Christoph Korn
    Heidelberg University, Germany

Abstract

We examined LLMs’ representations of human self- and other-personality judgments across five studies. LLMs reproduced a self-enhancement pattern but overestimated its magnitude. Targeted prompt design and empirical anchoring recalibrated these biases. These results advance the reliability, validity, and safety of LLMs in psychological modeling and human-centered applications.

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