Lack of Conviction
Definition
A SCAN category covering hedging phrases like 'I think', 'I believe', 'I don't remember', which Sapir proposes signal deception because a person certain of the truth would state it without qualification.
- Framework
- SCAN (Scientific Content Analysis)
- Proponent
- Avinoam Sapir
- Example phrases
- 'I think', 'I believe', 'I don't remember'
- Claimed indicator
- Deception, per SCAN theory
Common questions
Is lack of conviction as a deception indicator scientifically validated?+
No, controlled studies testing SCAN criteria, including hedging language, have generally failed to find reliable association with deception, which is a central point in the scientific critique of the method.
Why might hedging language appear in a truthful statement?+
Genuine uncertainty about peripheral details, time pressure while writing, or a cautious communication style can all produce hedging phrases regardless of whether the core account is truthful.
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...
- Ground Truth
- In deception-detection research, independently verified knowledge of whether a statement was truthful or deceptive, established through confession, DNA, or other objective means,...
- 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...