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Truth or lie?: The difference between three types of judges in deception detection

Kraft, J.M.G. (2013) Truth or lie?: The difference between three types of judges in deception detection.

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Abstract:The main goal of this study was to look at differences in deception detection during interviews between three different types of judges: the interviewing parties, untrained observers and trained observers. The recent meta-analysis of Hartwig and Bond (2011) was used as a starting point. Our expectation was that the interviewers would be worse in deception detection than the observers. Also was studied, if the trained observers are better at deception detection than the untrained observers and interviewers. Further, and as Hartwig and Bond (2011) analysis suggests that interventions could enhance the relatively weak signals, we examined the effect of a relational intervention: mimicry. We expected that when mimicry is repressed, the accuracy in deception detection increases. We tested our expectations on a previously collected dataset with 63 videotapes of interviews in which students either lied or told the truth. Our design was a 3 (mimicry versus no mimicry versus control) X 3 (interviewer versus untrained observer versus trained observer ) design. The results show that the trained observers did worst in deception detection than the interviewees and the untrained observers. Also, the interviewers who mimicked the interviewee, were better in deception detection than the interviewers who repressed mimicry
Item Type:Essay (Bachelor)
Faculty:BMS: Behavioural, Management and Social Sciences
Subject:77 psychology
Programme:Psychology BSc (56604)
Link to this item:http://purl.utwente.nl/essays/64105
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