Sketching while narrating is effective for eliciting information and veracity cues in single interviews. In the current research, we tested this technique in multiple interviews. Participants were interviewed three times over three weeks about a genuine (truth tellers) or a fabricated (lie tellers) memorable event. They sketched while narrating in Week 1, Week 2, Weeks 1 and 2, or not at all (verbal statement only). Statements were coded for total, core, peripheral, and common knowledge details, self-handicapping strategies, complications, plausibility, and proportions of complications and core details. In the third interview and across interviews, the Sketch instruction resulted in a higher proportion of core details. Truth tellers reported more total and core details and complications and fewer common knowledge details and exhibited a higher proportion of complications than lie tellers. Truth tellers' stories also sounded more plausible than lie tellers' stories. The interaction effects were not significant. Thus, sketching while narrating seemed to have a similar effect on truth tellers and lie tellers in the current study.
- lie detection
- multiple interviews
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Deeb, H. (Creator), University of Portsmouth, Feb 2021