Most Talked-About Controversies Linked to Dan Ariely

Controversies are a part of history. Explore the biggest scandals linked to Dan Ariely.

Dan Ariely is an Israeli-American professor of psychology and behavioral economics at Duke University, known for his research and writings on irrationality and decision-making. He is the author of several New York Times best-selling books, including *Predictably Irrational*, exploring how people deviate from rational behavior in predictable ways. Ariely also co-produced a documentary on dishonesty and wrote an advice column for the Wall Street Journal. His work has had practical applications, leading him to co-found companies based on behavioral science insights. His research and book *Predictably Irrational* inspired the NBC television series *The Irrational*.

Sections (3)

Full Timeline Career & Achievements Controversies & Scandals

2004: Data collection for "Ten Commandments" study

In 2004, Dan Ariely claimed that data for his "Ten Commandments" study were collected in 2004–2005 at UCLA with the assistance of Aimee Drolet Rossi. However, despite being thanked in the 2004 paper for collecting the data almost 20 years later, Rossi denies having run the study, and UCLA has issued a statement that the study did not take place there.

2004: Publication of paper by James Heyman and Ariely

In 2004, James Heyman and Dan Ariely published a paper which was later challenged in July 2021 due to uncertainty regarding the statistical tests reported and the analytic approach taken to the data.

2005: Data collection for "Ten Commandments" study

In 2005, Dan Ariely claimed that data for his "Ten Commandments" study were collected in 2004–2005 at UCLA with the assistance of Aimee Drolet Rossi. However, despite being thanked in the 2004 paper for collecting the data almost 20 years later, Rossi denies having run the study, and UCLA has issued a statement that the study did not take place there.

2006: MIT Ethics Committee Ban

In 2006, while at the MIT Media Lab, Dan Ariely conducted experiments, including administering electric shocks with a research assistant who lacked human-subject training, leading to a one-year ban from supervising data collection by MIT's ethics committee.

2010: Interview with NPR

In 2010, Dan Ariely told NPR in an interview that data from Delta Dental showed dentists frequently misdiagnosed cavities, leading to speculation about dentists charging more money.

2010: Criticism Regarding Reproducibility

Since 2010, some of Dan Ariely's statements and papers have faced criticism regarding their reproducibility or reliability.

2012: Paper on Honesty Pledge

In 2012, Dan Ariely co-authored a paper with Francesca Gino, Max H. Bazerman, Nina Mazar and Lisa L Shu about the honesty pledge, which was later found to be based on falsified data and retracted in 2021.

July 2021: Challenge to 2004 Paper in Psychological Science

In July 2021, the journal Psychological Science challenged a 2004 paper by James Heyman and Dan Ariely, prompted by uncertainty regarding the statistical tests reported in the article and the analytic approach taken to the data.

2021: Retraction of 2012 Paper

In 2021, a 2012 paper co-authored by Francesca Gino, Max H. Bazerman, Nina Mazar, Lisa L Shu, and Dan Ariely was discovered to be based on falsified data and was subsequently retracted.

November 2022: Hamakor Episode Questioning Ariely's Studies

In November 2022, the Israeli TV investigative show Hamakor (Channel 13) aired an episode questioning a number of Dan Ariely's studies that were not reproducible or whose reliability was dubious.

2024: Duke Investigation Conclusion

In 2024, Duke completed a three-year investigation, concluding that "data from the honesty-pledge paper had been falsified but found no evidence that Ariely used fake data knowingly".

2024: Confirmation in The Chronicle of Higher Education

In 2024, the NPR interview regarding Delta Dental was confirmed in an article in The Chronicle of Higher Education.

January 30, 2026: Release of Documents Regarding Ariely's Relationship with Epstein

On January 30, 2026, the United States Department of Justice released documents revealing that Dan Ariely had a longstanding relationship with Jeffrey Epstein.