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NCJ Number: 220381 Find in a Library
Title: Information Does Not Affect the Validity of a Comparison Question Test
Journal: Legal and Criminological Psychology  Volume:12  Issue:Part2  Dated:September 2007  Pages:311-320
Author(s): Charles R. Honts; Wendy R. Alloway
Date Published: September 2007
Page Count: 10
Type: Research (Applied/Empirical)
Format: Article
Language: English
Country: United Kingdom
Annotation: This study examined whether the provision of detailed information about the comparison question test (CQT) and possible countermeasures now available on the Internet would affect the validity of the Test for Espionage and Sabotage which is a directed lie variant of the CQT.
Abstract: Study results yielded no significant effects of providing information on the validity of the comparison question test (CQT). However, the reported use of countermeasures was associated with a lower probability of truthfulness. Results of the debriefing questionnaire were found to support predictions made by the theory of the CQT. In summary, concerns that readily available information will enable guilty individuals to produce false-negative errors seem unfounded. The most commonly used test for psychophysiological deception detection (PDD) in most countries is the CQT. CQTs operate on the premise that guilty and innocent participants will react differently to relevant and comparison questions. The Test for Espionage and Sabotage (TES) is a variation of the CQT and a relatively new polygraph testing format developed for use in national security. Previous research indicates that CQTs that use directed-lie comparison questions have equivalent or higher accuracy than CQTs that use the traditional probable-lie comparison questions. This study examined the effects of providing detailed information on the CQT and CQT-oriented countermeasures on the validity of the TES. Participants in the study consisted of 21 males and 19 females aged 18 to 44 years. Tables, figure, references
Main Term(s): Polygraph techniques
Index Term(s): Effectiveness; Evaluation measures; Instrument validation; Polygraphs; Psychological stress evaluator; Testing and measurement
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