Truax factors, speech characteristics, and therapeutic outcome.

Initial interview ratings of therapist accurate empathy, unconditional positive regard, and self-congruence were correlated with nonlexical speech characteristics and outcome of individual psychotherapy. Speech characteristics of both patients (greater total speech time, shorter pause time following therapists' comments, and faster reaction times) and therapists (fewer speech units) were significantly related to improved outcome. While Rogers-Truax factors were unrelated to outcome, they were related to speech characteristics of both patient and therapist. Furthermore, patients whose therapists showed high levels of the Truax factors tended to increase their average speech durations and total speech time during the course of the initial interview.