It's the deceiver, not the receiver: No individual differences when detecting deception in a foreign and a native...

Area of Science:

• Psychology
• Social Psychology
• Forensic Psychology

Background:

• Individual differences in lie detection accuracy are not well understood.
• Previous research suggests sender characteristics influence deception detection more than judge ability.
• Language comprehension may confound previous lie detection studies.

Purpose of the Study:

• To investigate individual differences in lie detection accuracy by removing language as a confound.
• To examine the influence of sender characteristics versus judge ability in deception detection.
• To replicate and extend previous findings on lie detection accuracy.

Main Methods:

• Study 1: English-speakers judged veracity of German speakers, controlling for language comprehension.
• Study 2: Native German-speakers served as a control group for lie detection tasks.
• Assessed intelligence (General, Auditory, Emotional) and personality (Dark Triads, Big 6) of participants.

Main Results:

• Removing language comprehension did not increase individual differences in lie detection ability.
• Both studies replicated previous findings that sender characteristics are more influential than judge ability.
• No significant individual differences were found in judges' ability to detect lies.

Conclusions:

• Sender characteristics significantly influence lie detection outcomes more than judge attributes.
• Language comprehension is not a primary factor limiting lie detection accuracy.
• Individual differences in lie detection ability are minimal, regardless of language barriers.