Can the exposure to techniques in detection enhance one’s ability to lie more effectively?

Rejek, Joseph (2013) Can the exposure to techniques in detection enhance one’s ability to lie more effectively? BSc dissertation, University of Portsmouth.

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    The present dissertation considers the effect of training participants in techniques that profess to detect deception, analysing whether participants who are taught techniques in detecting deception could appear more credible than those who are not taught the material. A convenience sample of 16 student participants was recruited, 12 being allocated as interviewees and four being allocated as interview raters, with half of all participants being taught techniques in detecting deception prior to their allocated tasks. Interviewees were required to collect an unmarked parcel from a nearby location before providing a verbal account of their journey to, from and at the parcel collection point. After this, they were required to provide a sketch of the parcel collection point. Interview raters were later given the verbal accounts and sketches and were required to rate them with regards to their perceived honesty. Results suggested that ‘taught raters’ generally provided less accurate ratings than those who were not taught detection techniques however accuracy rates across all raters averaged between 41.7% and 75%. In analysing the presence of detection criteria, results showed that more criteria were judged as being present in truthful accounts than deceptive accounts, however there appeared no difference between the accounts of taught and untaught interviewees. Results did not support the current literature however insignificant results may have been due to low motivation of participants and a low sample size. The poor application of techniques may also have been due to the difficulty in learning them and the insufficient time that was allocated to the teaching of them.

    Item Type: Dissertation
    Departments/Research Groups: Faculty of Humanities and Social Sciences > Institute of Criminal Justice Studies
    Depositing User: Jane Polwin
    Date Deposited: 31 Jul 2013 15:00
    Last Modified: 28 Jan 2015 12:26

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