Is it time to kill the detection wizard? Emotional intelligence does not facilitate deception detection

Is it time to kill the detection wizard? Emotional intelligence does not facilitate deception detection. Nicolas Roulin, Marguerite Ternes. Personality and Individual Differences, Volume 137, 15 January 2019, Pages 131-138. https://doi.org/10.1016/j.paid.2018.08.020

Highlights
•    Individuals high on emotional intelligence (EI) rely more on non-verbal information when attempting to detect deception.
•    EI and reliance on non-verbal information are unrelated to detection accuracy.
•    The popular notion that some people are naturally better at deception detection, or “detection wizards,” should be revisited.

Abstract: Being able to identify if someone is telling the truth or lying is essential in many social situations, for instance in police interrogations or employment interviews. Unfortunately, people are generally poor at lie detection. Some researchers have argued that a small category of individuals are detection wizards who can achieve substantially higher detection accuracy because they have high levels of emotional intelligence (EI) and are better able to identify non-verbal cues to deceit. These propositions have been popularized in the media and are appealing to some practitioners, but are based on very limited empirical evidence. We conducted three experimental studies to test these propositions, relying on different samples and using both trait and ability measures of EI. We measured deception detection using different approaches (in-person and video-based) and contexts (social interaction and job interview). One study measured skepticism, and another used eye-tracking technology to capture participants' reliance on non-verbal information. Results showed that high-EI individuals indeed rely more on non-verbal information. However, EI, skepticism, and the use of non-verbal cues are unrelated to deception detection. We thus argue that detection wizards are likely a myth, and it would be more productive to focus on evidence-based methods to improve deception detection.