Accession Number : ADA303889

Title :   Improving the Reliability of Polygraph Tests.

Descriptive Note : Final rept. Jan 93-Jan 94,

Corporate Author : WASHINGTON UNIV SEATTLE

Personal Author(s) : Clarkson, Douglas B. ; Martin, Doug

PDF Url : ADA303889

Report Date : 27 JAN 1994

Pagination or Media Count : 113

Abstract : The report summarizes the work completed during the second year of a two year study to examine the efficacy of using tree-based classifiers to analyze polygraph charts produced in a detection of deception context. Four hundred twenty-six (426) Modified General Question Technique (MGQT) polygraph charts produced by 144 subjects were used in this phase of the study. Half of the charts were used to develop the tree-based classifiers, the other half were used for cross-validation including estimating the probabilities of misclassification for each of the tree classifiers tested. The lowest misclassification probability achieved was 13.9%. Detailed information is provided about research procedures employed to both capture and analyze the data. (AN)

Descriptors :   *DATA BASES, *LIE DETECTORS, MATHEMATICAL MODELS, ALGORITHMS, DATA MANAGEMENT, VALIDATION, PROBABILITY, CONCURRENT ENGINEERING, REGRESSION ANALYSIS, RELIABILITY, ERRORS, CLASSIFICATION, PATTERN RECOGNITION, CHARTS, COMPUTER FILES, FREQUENCY DOMAIN, DECEPTION, ELECTROCARDIOGRAPHY, VECTORCARDIOGRAPHY, ECHOCARDIOGRAPHY, REACTION(PSYCHOLOGY), PSYCHOPHYSIOLOGY, BALLISTOCARDIOGRAPHY, CARDIOGRAPHY, PHONOCARDIOGRAPHY, OBJECT ORIENTED PROGRAMMING.

Subject Categories : Psychology
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE