Ground truth
Definition
In deception-detection research, independently verified knowledge of whether a statement was truthful or deceptive, established through confession, DNA, or other objective means, against which a method's accuracy can be measured.
Related terms
- Base rate problem
- The statistical challenge facing any deception-detection method: if only a minority of statements examined are actually deceptive, even a method that is...
- Extraneous information
- Information in a statement that the SCAN analyst judges to be beyond the stated scope of the question. SCAN treats such additions...
- Lack of conviction
- A SCAN category covering hedging phrases like 'I think', 'I believe', 'I don't remember', which Sapir proposes signal deception because a person...
- Pronoun shift
- A SCAN indicator based on the claim that deceptive writers drop first-person pronouns or shift to third-person reference when describing events they...
- SCAN (Scientific Content Analysis)
- A proprietary statement-analysis method developed by Avinoam Sapir that claims to identify deceptive content in written statements through analysis of linguistic features...
Explained in
- SCAN Statement Analysis: Claims, Methods, and the Scientific CritiqueIn deception-detection research, independently verified knowledge of whether a statement was truthful or deceptive, established through confession, DNA, or oth...