Further analysis of a doctor-patient nonverbal communication instrument.

This study examines the reliability and validity of the relational communication scale for observational measurement (RCS-O) using a random sample of 80 videotaped interactions of medical students interviewing standardized patients (SPs). The RCS-O is a 34-item instrument designed to measure the nonverbal communication of physicians interacting with patients. The instrument was applied and examined in two different interview scenarios.