Abstract
Voice stress analyses were performed on tape recorded pre-employment interviews in both their original form and after they had been transmitted via telephone and re-recorded. Expert voice stress examiners, blind to the telephone condition, reported less stress in the telephone charts than in the original charts. There was little relationship between the stress rating for the same charts in their original and telephone forms. Reliability estimates were low for both the original and telephone stress ratings. Summing over the stress ratings from individual questions and advanced training on the part of the examiners both appeared to improve the reliability estimates. The continued use of telephone recorded tapes as substitutes for the original tapes is highly questionable. In addition, these results suggest that voice analysis ratings, as they are currently used, do not show sufficient reliability to warrant their continued use as a selection procedure for employment.
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Wain, R.F., Downey, R.G. Voice stress analysis: Use of telephone recordings. J Bus Psychol 1, 379–389 (1987). https://doi.org/10.1007/BF01018146
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DOI: https://doi.org/10.1007/BF01018146