The model sketch for enhancing lie detection and eliciting information

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Abstract

Background: Sketching while narrating is an effective interview technique for eliciting information and cues to deceit. The current research examined the effects of introducing a Model Sketch in investigative interviews and is pre-registered on https://osf.io/kz9mc (accessed on 18 January 2022).

Methods: Participants (N = 163) completed a mock mission and were asked to tell the truth or to lie about it in an interview. In Phase 1 of the interview, participants provided either a free recall (control condition), sketched and narrated with exposure to a Model Sketch (Model Sketch-present condition), or sketched and narrated without exposure to a Model Sketch (Model Sketch-absent condition). In Phase 2, all participants provided a free recall without sketching.

Results: Truth tellers reported significantly more information than lie tellers. The Model Sketch elicited more location details than a Free recall in Phase 1 and more veracity differences than the other Modality conditions in Phase 2.

Conclusion: The Model Sketch seems to enhance the elicitation of information and to have carryover veracity effects in a follow-up free recall.
Original languageEnglish
Article number1180
Number of pages16
JournalBrain Sciences
Volume12
Issue number9
DOIs
Publication statusPublished - 2 Sep 2022

Keywords

  • deception
  • lie detection
  • model sketch
  • verbal cues
  • PLATO details

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