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Differential processes in detecting lies among police officers and laypersons

It was observed that neither Laypersons (LAPs) nor Professional lie-detectors (PLDs; e.g., police investigators) are accurate in detecting lies. However, when LAPs and PLDs judge the credibility of a statement they typically make different errors. LAPs are biased toward truth, tending to make more truthful than deceptive judgments, whereas PLDs are biased toward lies, tending to make more deceptive than truthful judgments. The main objective of the project was to examine the process that underlying these outcomes among LAPs and PLDs.

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