Scientific Validity of Polygraph Testing

Scientific Validity of Polygraph Testing PDF

Author: United States. Congress. Office of Technology Assessment

Publisher:

Published: 2003-12-29

Total Pages: 0

ISBN-13: 9781410210708

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This technical memorandum presents the results of the Office of Technology Assessment's (OTA) review and assessment of the scientific evidence on the validity of polygraph testing. OTA has limited this technical memorandum to issues directly related to the scientific validity of the polygraph. OTA did not consider utility, privacy, constitutional, and ethical issues, among others that have been raised in the debate over polygraph testing. We first discuss the various types of polygraph testing procedures and ways in which the polygraph is used, and then summarize the judicial, legislative, and scientific controversy over polygraph testing validity. Next, we review and evaluate both prior reviews of the scientific research on polygraph validity and the individual research studies. Finally, we discuss the range of factors that may affect polygraph validity and the possibilities for future research, and present OTA's conclusions about the scientific evidence for current and proposed Federal Government polygraph use. In preparing this memorandum, OTA has drawn on research information available from a wide variety of sources, including the major Federal Government polygraph users, the American Polygraph Association, various private polygraph practitioners, and polygraph researchers both in the United States and abroad.

The Polygraph and Lie Detection

The Polygraph and Lie Detection PDF

Author: National Research Council

Publisher: National Academies Press

Published: 2003-02-22

Total Pages: 417

ISBN-13: 0309263921

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The polygraph, often portrayed as a magic mind-reading machine, is still controversial among experts, who continue heated debates about its validity as a lie-detecting device. As the nation takes a fresh look at ways to enhance its security, can the polygraph be considered a useful tool? The Polygraph and Lie Detection puts the polygraph itself to the test, reviewing and analyzing data about its use in criminal investigation, employment screening, and counter-intelligence. The book looks at: The theory of how the polygraph works and evidence about how deceptivenessâ€"and other psychological conditionsâ€"affect the physiological responses that the polygraph measures. Empirical evidence on the performance of the polygraph and the success of subjects' countermeasures. The actual use of the polygraph in the arena of national security, including its role in deterring threats to security. The book addresses the difficulties of measuring polygraph accuracy, the usefulness of the technique for aiding interrogation and for deterrence, and includes potential alternativesâ€"such as voice-stress analysis and brain measurement techniques.

Credibility Assessment

Credibility Assessment PDF

Author: David C. Raskin

Publisher: Academic Press

Published: 2013-12-17

Total Pages: 417

ISBN-13: 0123947820

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In 2001, the late Murray Kleiner and an array of experts contributed to the Handbook of Polygraph Testing, published by Elsevier, which examined the fundamental principles behind polygraph tests and reviewed the key tests and methods used at that time. In the intervening thirteen years, the field has moved beyond traditional polygraph testing to include a host of biometrics and behavioral observations. The new title reflects the breadth of methods now used. Credibility Assessment builds on the content provided in the Kleiner volume, with revised polygraph testing chapters and chapters on newer methodologies, such as CNS, Ocular-motor, and behavioral measures. Deception detection is a major field of interest in criminal investigation and prosecution, national security screening, and screening at ports of entry. Many of these methods have a long history, e.g., polygraph examinations, and some rely on relatively new technologies, e.g., fMRI and Ocular-motor measurements. Others rely on behavioral observations of persons in less restricted settings, e.g., airport screening. The authors, all of whom are internationally-recognized experts associated with major universities in the United States, United Kingdom, and Europe, review and analyze various methods for the detection of deception, their current applications, and major issues and controversies surrounding their uses. This volume will be of great interest among forensic psychologists, psychophysiologists, polygraph examiners, law enforcement, courts, attorneys, and government agencies. Provides a comprehensive review of all aspects of methods for deception detection Includes methods being used in credibility, such as autonomic, CNS, fMRI, and Ocular-motor measures and behavioral and facial observation Edited by leaders in the field with over 25+ years of experience Discusses theory and application

Fundamentals of Polygraph Practice

Fundamentals of Polygraph Practice PDF

Author: Donald Krapohl

Publisher: Academic Press

Published: 2015-07-09

Total Pages: 365

ISBN-13: 0128029250

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Though polygraph has been the mainstay for government and police departments since World War II, it has undergone substantial transformation in recent years. Fundamentals of Polygraph Practice bridges the gap between the outmoded practices and today’s validated testing and analysis protocols. The goal of this reference is to thoroughly and concisely describe the evidence-based practices of polygraphy. Coverage will include: psychophysiology, testing techniques, data collection, data analysis, ethics, polygraph law, alternate technologies and much more. This text addresses the foundational needs of polygraph students, and is written to be useful and accessible to attorneys, forensic scientists, consumers of polygraph services, and the general public. Includes protocols and fundamentals of polygraph practice Covers the history of lie detection, psychophysiology, data collection, techniques and testing, data analysis and much more Authors are internationally recognized in the polygraph field

The Polygraph and Lie Detection

The Polygraph and Lie Detection PDF

Author: National Research Council

Publisher: National Academies Press

Published: 2003-01-22

Total Pages: 417

ISBN-13: 0309084369

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The polygraph, often portrayed as a magic mind-reading machine, is still controversial among experts, who continue heated debates about its validity as a lie-detecting device. As the nation takes a fresh look at ways to enhance its security, can the polygraph be considered a useful tool? The Polygraph and Lie Detection puts the polygraph itself to the test, reviewing and analyzing data about its use in criminal investigation, employment screening, and counter-intelligence. The book looks at: The theory of how the polygraph works and evidence about how deceptivenessâ€"and other psychological conditionsâ€"affect the physiological responses that the polygraph measures. Empirical evidence on the performance of the polygraph and the success of subjects' countermeasures. The actual use of the polygraph in the arena of national security, including its role in deterring threats to security. The book addresses the difficulties of measuring polygraph accuracy, the usefulness of the technique for aiding interrogation and for deterrence, and includes potential alternativesâ€"such as voice-stress analysis and brain measurement techniques.

Forensic Neuropsychology

Forensic Neuropsychology PDF

Author: Glenn J. Larrabee

Publisher: Oxford University Press

Published: 2011-12-06

Total Pages: 552

ISBN-13: 0199920893

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With increasing frequency neuropsychologists are being asked to serve as experts in court cases where judgements must be made as to the cause of, and prognosis for brain diseases and injuries. This book describes the application of neuropsychology to legal issues in both the civil and criminal courts. It emphasizes a scientific basis of neuropsychology. All of the contributors are recognized as scientist-clinicians. The chapters cover common forensic issues such as appropriate scientific reasoning, the assessment of malingering, productive attorney-neuropsychologist interactions, and ethics. Also, covered are the determination of damages in personal injury litigation, including pediatric brain injury, mild, moderate, and severe traumatic brain injury in adults (with an introduction to life care planning); neurotoxic injury; and forensic assessment of medically unexplained symptoms. Civil competencies in the elderly persons with dementia are addressed a separate chapter, and two chapters deal with the assessment of competency and responsibility in criminal forensic neuropsychology. This volume will be an invaluable resource for neuropsychologists, attorneys, neurologists, clinical psychologists, psychiatrists, and their students and trainees.

A Tremor In The Blood

A Tremor In The Blood PDF

Author: David T. Lykken

Publisher:

Published: 1998-03-21

Total Pages: 360

ISBN-13:

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The author presents case histories of persons whose lives have been blighted by our uniquely American faith in the myth of the lie detector. Dr. Lykken also explains how to "beat" the machine, not only because it is unfair that spies and Mafia soldiers already know these techniques, but also because innocent persons have nearly a 50:50 chance of failing lie detector tests unless they use appropriate countermeasures. Many state courts in the U.S. still admit lie detector tests into evidence under certain conditions - a practice that ensures the conviction of more innocent people every year. Finally, Dr. Lykken reports on the results of recent surveys of informed scientific opinion about lie detection and presents another method of polygraphic interrogation that is designed to detect, not lies, but the presence of guilty knowledge. This method is scientifically credible and holds promise for future use in criminal investigation.