The studies behind the sales advice, with the sample size and the limits included

Persuasion research gets popularised fast and qualified rarely. Each entry here names the study, the sample and what it does not show, and says whether the finding replicated.

Read what the 2023 anchoring meta-analysis actually shows See whether buyers can spot an AI-written proposal

New studies on persuasion and negotiation, read past the headline

What the sample size was, what the study did not test, and whether anyone has since reproduced it.