skip navigation


Register for Latest Research

Stay Informed
Register with NCJRS to receive NCJRS's biweekly e-newsletter JUSTINFO and additional periodic emails from NCJRS and the NCJRS federal sponsors that highlight the latest research published or sponsored by the Office of Justice Programs.

NCJRS Abstract

The document referenced below is part of the NCJRS Virtual Library collection. To conduct further searches of the collection, visit the Virtual Library. See the Obtain Documents page for direction on how to access resources online, via mail, through interlibrary loans, or in a local library.


NCJ Number: 182300 Find in a Library
Title: Effect of Demographic Variables on Psychophysiological Detection of Deception Examination Outcome Accuracies
Journal: Polygraph  Volume:28  Issue:4  Dated:1999  Pages:310-331
Author(s): Sheila D. Reid
Date Published: 1999
Page Count: 22
Type: Report (Study/Research)
Format: Article
Language: English
Country: United States of America
Annotation: This study was designed to assess whether or not demographic variables and individual differences affected the outcome accuracies of Modified General Question Technique (MGQT) and Zone Comparison Test (ZCT) psychophysiological-detection-of-deception (PDD) examinations.
Abstract: The demographic variables and individual differences analyzed in this study were residence (urban/rural), income level (less or more than $20,000), gender, age, education, and role (innocent or guilty). The study used 211 military and 168 civilian examinees. A total of 232 examinees were male, and 147 examinees were female. Examiners were 24 students enrolled in the Department of defense Polygraph Institute Basic Polygraph Examiners Training Course and 3 federally certified examiners on staff at the Institute. Examiners participated in the study during the 7th, 8th, 10th, and 11th weeks of the course. All examiners used standard field polygraph instruments. A variety of scenarios (rape, murder, robbery) were used to program examinees guilty or innocent. All examinations were conducted according to Institute standards and guidelines. Analyses of the data concerning income and residence were limited to data from the civilian examinees. Results suggest that these PDD techniques are relatively robust with respect to the examined demographic variables. In general, there were no significant results. The accuracies of the tested PDD techniques were not influenced by the examined demographic variables or individual differences. 32 tables; appended polygraph examination and demographic work sheet, demographic survey sheet, and statistics for all tables; and a 23-item annotated bibliography
Main Term(s): Police criminal investigation training
Index Term(s): Demography; Polygraph reliability; Polygraph techniques; Polygraphs
To cite this abstract, use the following link:

*A link to the full-text document is provided whenever possible. For documents not available online, a link to the publisher's website is provided. Tell us how you use the NCJRS Library and Abstracts Database - send us your feedback.