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Assessing the Validity of Voice Stress Analysis Tools in a Jail Setting
Publication year:
2007
| Cataloged on:
Jul. 27, 2007
ANNOTATION: The validity and reliability of Voice Stress Analysis (VSA) devices to measure offender deception is determined by comparing VSA output to urinalysis. Sections of this report include: abstract; executive summary; introduction and project background; review of relevant literature; research design and analysis strategy; findings regarding evaluation of VSA software validity, evaluation of VSA program reliability, and bogus pipeline effect; and conclusions and implications for policy and practice. "On average, only about 15% of the respondants who recently used drugs but reported that they had not used drugs were identified as being deceptive" (p. 88).