Forensic "lie detection"

Procedures without scientific basis

Research output: Contribution to journalComment/debate

22 Citations (Scopus)

Abstract

This paper provides a critical overview of the scientific status of the control question test (CQT), the type of polygraph test most likely to be used in forensic settings. The CQT is based on an implausible set of assumptions that makes it biased against innocent individuals and easy for guilty persons to defeat using countermeasures. Due to serious methodological problems that characterize research on CQT validity, it is not possible to use the existing literature to provide a satisfactory error rate estimate. Scientists, including members of the Society for Psychophysiological Research and APA Fellows, hold negative views about the CQT. They do not believe that it is based on sound theory, that it has adequate psychometric properties, or that it should be used as evidence in court.

Original languageEnglish (US)
Pages (from-to)75-86
Number of pages12
JournalJournal of Forensic Psychology Practice
Volume1
Issue number1
DOIs
StatePublished - Feb 19 2001

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Lie Detection
Research
Psychometrics

Keywords

  • Control question test
  • Forensic
  • Lie detection
  • Polygraph

Cite this

Forensic "lie detection" : Procedures without scientific basis. / Iacono, William G.

In: Journal of Forensic Psychology Practice, Vol. 1, No. 1, 19.02.2001, p. 75-86.

Research output: Contribution to journalComment/debate

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