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The Effects of Unexpected Questions on Detecting Familiar and Unfamiliar Lies

Warmelink, Lara and Vrij, Aldert and Mann, Samantha and Leal, Sharon and Poletiek, Fenna H. (2013) The Effects of Unexpected Questions on Detecting Familiar and Unfamiliar Lies. Psychiatry, Psychology and Law, 20 (1). pp. 29-35.

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Abstract

Previous research suggests that lie detection can be improved by asking the interviewee unexpected questions. The present experiment investigates the effect of two types of unexpected questions: background questions and detail questions, on detecting lies about topics with which the interviewee is (a) familiar or (b) unfamiliar. In this experiment, 66 participants read interviews in which interviewees answered background or detail questions, either truthfully or deceptively. Those who answered deceptively could be lying about a topic they were familiar with or about a topic they were unfamiliar with. The participants were asked to judge whether the interviewees were lying. The results revealed that background questions distinguished truths from both types of lies, while the detail questions distinguished truths from unfamiliar lies, but not from familiar lies. The implications of these findings are discussed.

Item Type: Article
Journal or Publication Title: Psychiatry, Psychology and Law
Uncontrolled Keywords: deception detection ; interviewing
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Departments: Faculty of Science and Technology > Psychology
ID Code: 59288
Deposited By: ep_importer_pure
Deposited On: 17 Oct 2012 13:09
Refereed?: Yes
Published?: Published
Last Modified: 17 Sep 2013 08:42
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/59288

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