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Directionality and representativeness are differentiable components of stereotypes in large language models.

Gandalf Nicolas1, Aylin Caliskan2

  • 1Department of Psychology, Rutgers University, New Brunswick, NJ 08873, USA.

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This study introduces representativeness as a new way to understand stereotypes in AI, finding it

Keywords:
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Area of Science:

  • Artificial Intelligence
  • Computational Social Science
  • Psychology

Background:

  • Existing AI bias research focuses on stereotype direction (e.g., competence vs. incompetence).
  • Representativeness, the focus of stereotypes on specific content dimensions (e.g., Warmth, Competence), remains underexamined.
  • Direction-based bias detection may miss representativeness biases in AI models.

Purpose of the Study:

  • To investigate representativeness as an independent property of stereotypes in AI models.
  • To examine if representativeness is distinct from stereotype direction for Warmth and Competence dimensions.
  • To assess the impact of representativeness and direction on AI model valence and human stereotypes.

Main Methods:

  • Analyzed stereotypes in ChatGPT and SBERT language models using a large sample of social categories.
  • Focused on the Warmth and Competence stereotype dimensions.
  • Examined representativeness across social category terms and racialized name exemplars.

Main Results:

  • Provided evidence for the construct differentiability of direction and representativeness for Warmth and Competence stereotypes.
  • Demonstrated these findings across different AI models and target stimuli.
  • Showed that both direction and representativeness uniquely predicted AI valence and human stereotypes.

Conclusions:

  • Representativeness is a distinct and important feature of AI stereotypes, separate from direction.
  • AI bias auditing needs to consider both stereotype direction and representativeness for fairness.
  • Findings have implications for AI in cognitive science and AI fairness research.