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Machine Learning Approach to Identifying Empathy Using the Vocals of Mental Health Helpline Counselors: Algorithm Development and Validation

Machine Learning Approach to Identifying Empathy Using the Vocals of Mental Health Helpline Counselors: Algorithm Development and Validation

The level of suicide risk of each caller had been previously assessed by counselors using the Columbia Suicide Severity Rating Scale (C-SSRS) to differentiate between calls featuring high suicide risk (with C-SSRS ratings of 6‐7) and calls with low risk of suicide (with C-SSRS ratings of 1‐2; please refer to Iyer et al [17] for further details [18]). Only the counselors’ voice recordings were used in this study.

Ruvini Sanjeewa, Ravi Iyer, Pragalathan Apputhurai, Nilmini Wickramasinghe, Denny Meyer

JMIR Form Res 2025;9:e67835