Law and Human Behavior

, Volume 31, Issue 1, pp 117–123 | Cite as

Unicorns or Tiger Woods: Are Lie Detection Experts Myths or Rarities? A Response to On Lie Detection “Wizards” by Bond and Uysal

  • Maureen O’SullivanEmail author
Original Article


Bond and Uysal (this issue) complain that expert lie detectors identified by O’Sullivan and Ekman (2004) are statistical flukes. They ignore one class of experts we have identified and misrepresent the procedures we use to identify the others. They also question the psychometric validity of the measures and protocol used. Many of their points are addressed in the chapter they criticize. The fruitfulness of the O’Sullivan-Ekman protocol is illustrated with respect to improved identification of expert lie detectors, as well as a replicated pattern of errors made by experts from different professional groups. The statistical arguments offered confuse the theoretical use of the binomial with the empirical use of the normal distribution. Data are provided that may clarify this distinction


Deception Lie detection Accuracy Expertise 



Many thanks to Paul Ekman, Clark Freshman, Dana Carney, Shirley McGuire, Ben Lewis, Michael Davis-Wilson, Susan Heidenreich, David Howell, and Paul Zeitz for their comments on this response and the issues raised by it.


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Copyright information

© American Psychology-Law Society/Division 41 of the American Psychological Association 2007

Authors and Affiliations

  1. 1.Department of PsychologyUniversity of San FranciscoSan FranciscoUSA

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