A critical analysis of the Model Statement literature: Should this tool be used in practice?. Issue 1 (14th October 2020)

• Record Type: Journal Article
• Authors: Porter, Cody Normitta; Taylor, Rachel; Salvanelli, Giacomo
• Is Part Of: Journal of investigative psychology and offender profiling. Volume 18:Issue 1(2021)
• Page Start: 35
• Page End: 55
• Publication Date: 2020-10-14
• Subjects: critical analysis -- information elicitation -- investigative interviewing -- lie‐detection -- Model Statement; Criminal psychology -- Periodicals; Criminal behavior, Prediction of -- Periodicals; 365.3
• DOI: 10.1002/jip.1563
• Languages: English
• ISSNs: 1544-4759

Abstract

Abstract: Investigators need to elicit detailed statements from interviewees to find potential leads, whilst simultaneously judging if a statement is genuine or fabricated. Researchers have proposed that the Model Statement (MS) can both (a) increase information elicitation from interviewees and (b) amplify the verbal differences between liars and truth tellers, thereby enhancing lie‐detection accuracy. Based upon a critical analysis of the MS literature, we argue that this tool is not currently ready for practical usage, as its utility has not been fully established. We highlight a diverse range of existing MS scripts, and a greater diversity in the dependent measures examined in conjunction with this tool. More robust replications of these procedures are needed. We also highlight why some measures of verbal content may not be suitable as outcome measures and suggest that new research could use the well‐established reality monitoring criteria to allow for standardisation across studies.