Wpływ szkolenia na skuteczność wykrywania kłamstwa (The Layman’s Ability to Detect Deception – Can it Be Improved by a Short Training?)

Jagoda Dzida
Wydział Prawa i Administracji Uniwersytetu im. A. Mickiewicza w Poznaniu

Law and Forensic Science, Volume 14 (2017/2).

Submitted: May 24, 2017.

The author declares there is no conflict of interest.


Abstract: The study was conducted to verify, whether it is possible to improve people’s ability to detect deception by a short training, and if so, to what extend it can be improved. The results are important due to the potential applicability of non-instrumental deception detection methods in the criminal procedure. The experiment was conducted on the group of students who were asked to decide, whether the persons, depicted on the video, are telling the truth or are lying. The procedure was repeated after a short training that gave the students more detailed information about the most reliable verbal and nonverbal cues to deception. The results revealed that a short training may improve lie detection by about 22%. The implications for future research are discussed.

Keywords: deception detection, lie, training

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