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Polygraph Examiner Awareness of Crime-Relevant Information and the Guilty Knowledge Test

Polygraph Examiner Awareness of Crime-Relevant Information and the Guilty Knowledge Test A mock-theft experiment was designed to examine the efficiency of the Guilty Knowledge Test when (a) the examiner was aware of some of the crime-relevant items; (b) target items (i.e., items that are significant to participants for reasons other than crime-relevance) were incorporated into the test; (c) the motivation of guilty participants to appear innocent was manipulated. Results indicated that (a) participants yielded weaker responses to relevant items when the examiner was aware of them than when he did not have the knowledge; (b) the inclusion of target items had no overall effect on the responses to the relevant items: (c) within the guilty condition, highly motivated participants were more responsive to the relevant items than less motivated participants, and the inclusion of target items significantly decreased detection accuracy of low motivated participants. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Law and Human Behavior Springer Journals

Polygraph Examiner Awareness of Crime-Relevant Information and the Guilty Knowledge Test

Law and Human Behavior , Volume 21 (1) – Sep 15, 2004

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References (23)

Publisher
Springer Journals
Copyright
Copyright © 1997 by Plenum Publishing Corporation
Subject
Psychology; Law and Psychology; Criminology and Criminal Justice, general; Personality and Social Psychology; Community and Environmental Psychology
ISSN
0147-7307
eISSN
1573-661X
DOI
10.1023/A:1024822211587
Publisher site
See Article on Publisher Site

Abstract

A mock-theft experiment was designed to examine the efficiency of the Guilty Knowledge Test when (a) the examiner was aware of some of the crime-relevant items; (b) target items (i.e., items that are significant to participants for reasons other than crime-relevance) were incorporated into the test; (c) the motivation of guilty participants to appear innocent was manipulated. Results indicated that (a) participants yielded weaker responses to relevant items when the examiner was aware of them than when he did not have the knowledge; (b) the inclusion of target items had no overall effect on the responses to the relevant items: (c) within the guilty condition, highly motivated participants were more responsive to the relevant items than less motivated participants, and the inclusion of target items significantly decreased detection accuracy of low motivated participants.

Journal

Law and Human BehaviorSpringer Journals

Published: Sep 15, 2004

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