In Greene and Paxton's coin-flip prediction study, 14 of 35 participants were classified as 'dishonest' because they achieved an improbable average accuracy of 69% or higher.
Notes on verification
Directly confirmed by verbatim text from the original PNAS 2009 study and corroborated by independent science journalism covering the same figures and thresholds. [tier=gold indep_score=0.95 clusters=3 claim_tier=notable] [kind-backfill 2026-09-15: kind=attributed eligibility=high]
Sources
- Will vs. Grace – are people honest because they resist temptation or ... (seed:science_and_space)
- https://www.pnas.org/doi/10.1073/pnas.0900152106 (corroboration)
- http://blogs.discovermagazine.com/notrocketscience/2009/07/14/will-vs-grace-are-people-honest-because-they-resist-temptation-or-because-they-dont-feel-it/ (corroboration)
- https://scienceblogs.com/notrocketscience/2009/07/14/will-vs-grace-are-people-honest-because-they-resist-tempta (corroboration)