Can You Share Your Story? Modeling Clients' Metacognition and Openness for LLM Therapist Evaluation

• URL: http://arxiv.org/abs/2507.19643v1
• Date: Fri, 25 Jul 2025 19:32:05 GMT
• Title: Can You Share Your Story? Modeling Clients' Metacognition and Openness for LLM Therapist Evaluation
• Authors: Minju Kim, Dongje Yoo, Yeonjun Hwang, Minseok Kang, Namyoung Kim, Minju Gwak, Beong-woo Kwak, Hyungjoo Chae, Harim Kim, Yunjoong Lee, Min Hee Kim, Dayi Jung, Kyong-Mee Chung, Jinyoung Yeo,
• Abstract summary: Existing evaluation methods rely on client simulators that clearly disclose internal states to the therapist.<n>We introduce MindVoyager, a novel evaluation framework featuring a controllable and realistic client simulator.<n>We further introduce evaluation metrics that assess the exploration ability of LLM therapists by measuring their thorough understanding of client's beliefs and thoughts.
• Score: 8.701508400127342
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Understanding clients' thoughts and beliefs is fundamental in counseling, yet current evaluations of LLM therapists often fail to assess this ability. Existing evaluation methods rely on client simulators that clearly disclose internal states to the therapist, making it difficult to determine whether an LLM therapist can uncover unexpressed perspectives. To address this limitation, we introduce MindVoyager, a novel evaluation framework featuring a controllable and realistic client simulator which dynamically adapts itself based on the ongoing counseling session, offering a more realistic and challenging evaluation environment. We further introduce evaluation metrics that assess the exploration ability of LLM therapists by measuring their thorough understanding of client's beliefs and thoughts.

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