Validity and reliability of nonverbal voice measures as indicators of stressor-provoked anxiety

Authors

  • Dr. Barbara F. Fuller,

    Corresponding author
    1. Barbara F. Fuller, PhD, RN, is a professor, School of Nursing; Yoshiyuki Horii, PhD, is a professor, Department of Speech Science and Communication Disorders, and Douglas A. Conner, PhD, is a research fellow, School of Nursing; all are at the University of Colorado
    • Campus Box C-288, University of Colorado Health Sciences Center, 4200 East Ninth Ave., Denver, CO 80262.
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  • Yoshiyuki Horii,

    1. Barbara F. Fuller, PhD, RN, is a professor, School of Nursing; Yoshiyuki Horii, PhD, is a professor, Department of Speech Science and Communication Disorders, and Douglas A. Conner, PhD, is a research fellow, School of Nursing; all are at the University of Colorado
    Search for more papers by this author
  • Douglas A. Conner

    1. Barbara F. Fuller, PhD, RN, is a professor, School of Nursing; Yoshiyuki Horii, PhD, is a professor, Department of Speech Science and Communication Disorders, and Douglas A. Conner, PhD, is a research fellow, School of Nursing; all are at the University of Colorado
    Search for more papers by this author

Abstract

To determine the validity and reliability of vocal jitter, tenseness, and pitch as measures of stressor-provoked anxiety, 88 women representing three coping styles (Highly Anxious, Truly Low Anxious, and Repressor) phonated vowels, reported anxiety, and provided measures of muscle tension, heart rate, and sweating 2 weeks before, the day before, and 1 week after stressful exams. Greater self-reported anxiety, sweating, and heart rate on the day before versus the other occasions confirmed the day before was the most stressful occasion. Results suggest excellent validity and reliability for Jitter as an indicator of stressor-provoked anxiety.

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