PSI-Bench: Interpretable and Clinically Meaningful Evaluation of Depression Patient Simulators

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arXiv:2604.25840v2 Announce Type: replace-cross Abstract: Patient simulators are gaining traction in mental health training by providing scalable exposure to complex and sensitive patient interactions. Simulating depressed patients is challenging, as safety constraints and high patient variability complicate simulations and underscore the need for simulators that capture diverse and realistic patient behaviors. However, existing evaluations heavily rely on LLM-judges with poorly specified prompt