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Reliability and validity of an interval measure of vocal stress

Published online by Cambridge University Press:  09 July 2009

B. F. Fuller
B. F. Fuller*
Affiliation:
University of Colorado Health Sciences Center, Denver, Colorado, USA
*
1Address for correspondence: Professor B. F. Fuller University of Colorado Health Sciences Center, 4200 East Ninth Avenue, Denver, Colorado 80262, USA.
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Synopsis

The reliability and validity of Psychological Stress Evaluator (PSE) output and frequency modulation suppression as an inaudible vocal measure of stress-arousal was further explored, using a new interval scoring method. ‘Yes’ answers to 6 neutral questions were obtained from 106 volunteers 2 weeks before, the day before and one week after a stress-provoking event (oral comprehensive examinations for an MS degree). The data show excellent construct validity and good but not high internal consistency (0·77–0·81) and test-retest (0·72–0·74) reliability. Interrater reliability ranged from 0·94 to 0·98. Correlations of PSE output with other psychological and physiological measures (criterion-related validity) was very poor.

Type
Research Article
Information
Psychological Medicine , Volume 14 , Issue 1 , February 1984 , pp. 159 - 166
Copyright
Copyright © Cambridge University Press 1984

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