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News/An LLM-Native Psychometric Instrument Does Not Predict LLM Behavior: Evidence Across 25 Models
arxiv
PublishedJune 26, 2026 at 4:00 AM

An LLM-Native Psychometric Instrument Does Not Predict LLM Behavior: Evidence Across 25 Models

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arXiv:2606.09843v2 Announce Type: replace-cross Abstract: Large language models (LLMs) give stable answers to personality questionnaires, yet these self-reports fail to predict how the models actually behave. Is this gap an artifact of forcing human trait categories onto LLMs, or something deeper ab

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