AI made people 11.7 points more confident even though about half its answers were faulty
Buyer behaviour
- Reader Note:
- Confidence was self-rated after solving lab reasoning questions, not measured in a live business workflow.
- Evidence:
- Experimental
- Vendor interest:
- None
- Sample:
- Three preregistered experiments with 1,372 total participants in pooled analysis; university lab and Prolific samples solving 7 CRT reasoning items, with participants randomly assigned to AI access and other conditions.
Good for
Backing budget and pricing decisions in similar situations.
Not for
- Situations far from the one tested, without checking again.
- This was measured in one market. It may not hold where you are.
- The source never says when this data was collected. It could be considerably older than the publication date suggests.




