ISSN: 0022-1198
CODEN: JFSCA
Page Count: 11

Computerized Polygraph Scoring System
Olsen, DE
Program manager and senior staff, The Johns Hopkins University, Applied Physics Laboratory, MD

Harris, JC
Program manager and senior staff, The Johns Hopkins University, Applied Physics Laboratory, MD

Capps, MH
Director, US Department of Defense, Polygraph Institute, AL

Ansley, N
Consultant, Forensic Research, Inc., MD

(Received 24 July 1995; accepted 3 June 1996)

Abstract

Digitized polygraph data were collected during criminal investigations to develop a computerized algorithm for evaluating zone comparison polygraph examinations. The algorithm was incorporated in a software system and provides consistent and objective examination interpretation. The software system evaluates the data using methods that are fundamentally different than those used by examiners. It is currently in use in more than 40 of the United States and in other countries around the world.

Keywords:
forensic science, polygraph, algorithm, deception, zone comparison, discrimination, decision rule, logit, jackknife

Paper ID: JFS14068J
DOI: 10.1520/JFS14068J
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