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Item-Mean Surrogates: Why Richer Persona Data Fail to Improve LLMs as Human Surrogates

#Item-Mean #Surrogates #Richer #Persona #Data

arXiv:2608.29455v1 Announce Type: new Abstract: LLMs are increasingly used as human surrogates, often on the premise that richer persona data could make them substitutes or exploratory tools for specific individuals. We test this premise across four datasets covering more than 400,000 participants…