Objectives
- State what the research shows about detecting deception from behavior
- Apply Rule 9 to your own confidence
Video
Lesson
The evidence here is unforgiving and it belongs in the course. In the largest meta-analysis of deception judgments, Bond and DePaulo (2006) found people average 54 percent correct lie-truth judgments: 47 percent of lies caught, 61 percent of truths correctly cleared. People were more accurate judging what they heard than what they saw.
That number is close enough to chance that any confident reading of a person from behavior alone is an overclaim. Behavior work earns its place as a way to direct attention: where to look, what to ask, which record to pull. It does not settle whether a statement is true.
So the discipline stands: behavior is an observation, interpretation is an inference, and the claim still has to be checked against the record. Rule 9 applies to the observer, including one who has trained in reading people.
Terms
Faculty
Chase Hughes
NCI University (Neuro-Cognitive Intelligence)
Behavior profiling, elicitation, influence recognition
Taught here as method only. Marketing claims about rank or status, personal opinions, and any claim the published research does not support are left out. The deception-detection material is paired with the meta-analytic evidence on accuracy.
Bond and DePaulo (2006) found people average 54% correct lie-truth judgments. Behavior indicates stress or a change of state; it does not establish truth.