Effectiveness of Detection of Deception Examinations Using the Computer VoiceStress Analyzer

摘要

The accuracy of the Computer Voice Stress Analyzer (CVSA) instrument andassociated processes for the detection of deception was assessed using a mock theft scenario. One hundred nine subjects were randomly assigned to two groups and given detection of deception examinations using a CVSA instrument. Subjects in one group were programmed deceptive and participated in taking $100 from a metal box located in a scenario room. The non-deceptive group did not participate in the scenarios nor did they have knowledge of the mock theft. Four trained and certified CVSA examiners conducted the examinations using a CVSA technique called the Modified Zone of Comparison test. Test chart evaluators, who had not taken part in the study and who were blind to subject programming, obtained an overall accuracy of 49.8% (z = .05, p = .96). Administering examiners correctly