Police accuracy in truth/lie detection when judging baseline interviews

Psychiatry, Psychology, and Law : an Interdisciplinary Journal of the Australian and New Zealand Association of Psychiatry, Psychology and Law
Letizia CasoAldert Vrij

Abstract

Research has shown that a comparable truth baseline (CTB) approach elicits more cues to deception and results in higher accuracy rates than a small talk baseline. Past research focused on laypeople's accuracy rates. We examined whether the CTB also has a positive effect on law enforcement personnel accuracy. In this study, 95 police officers judged 10 interviews, whereby half of the senders told the truth, and the other half lied about a mock undercover mission. Half of the interviews included only questioning about the event under investigation, whereas the other half also included questioning aimed at creating a CTB. Total and truth accuracy did not differ, but observers who watched interviews with a CTB obtained higher lie detection accuracy rates than those who watched interviews without the baseline questioning. Signal detection analyses showed that this effect could be attributed to a decreased response bias in the CTB condition.

References

Sep 25, 1999·Behavior Research Methods, Instruments, & Computers : a Journal of the Psychonomic Society, Inc·H Stanislaw, N Todorov
Jan 31, 2003·Psychological Bulletin·Bella M DePauloHarris Cooper
Jul 25, 2006·Personality and Social Psychology Review : an Official Journal of the Society for Personality and Social Psychology, Inc·Charles F Bond, Bella M DePaulo
Jan 6, 2019·Annual Review of Psychology·Aldert VrijPär Anders Granhag
Mar 5, 2020·Psychiatry, Psychology, and Law : an Interdisciplinary Journal of the Australian and New Zealand Association of Psychiatry, Psychology and Law·Letizia CasoAldert Vrij

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Citations

Sep 12, 2020·ANZ Journal of Surgery·Alistair McCombeMichael Wagels
Mar 5, 2020·Psychiatry, Psychology, and Law : an Interdisciplinary Journal of the Australian and New Zealand Association of Psychiatry, Psychology and Law·Letizia CasoAldert Vrij

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