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Category: Fake data

[40] Reducing Fraud in Science

Posted on June 29, 2015February 11, 2020 by Uri Simonsohn

Fraud in science is often attributed to incentives: we reward sexy-results→fraud happens. The solution, the argument goes, is to reward other things.  In this post I counter-argue, proposing three alternative solutions. Problems with the Change the Incentives solution. First, even if rewarding sexy-results caused fraud, it does not follow we should stop rewarding sexy-results. We…

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[21] Fake-Data Colada: Excessive Linearity

Posted on May 8, 2014February 11, 2020 by Leif and Uri

Recently, a psychology paper (.html) was flagged as possibly fraudulent based on statistical analyses (.pdf). The author defended his paper (.html), but the university committee investigating misconduct concluded it had occurred (.pdf). In this post we present new and more intuitive versions of the analyses that flagged the paper as possibly fraudulent. We then rule…

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[19] Fake Data: Mendel vs. Stapel

Posted on April 14, 2014February 11, 2020 by Uri Simonsohn

Diederik Stapel, Dirk Smeesters, and Lawrence Sanna published psychology papers with fake data. They each faked in their own idiosyncratic way, nevertheless, their data do share something in common. Real data are noisy. Theirs aren't. Gregor Mendel's data also lack noise (yes, famous peas-experimenter Mendel). Moreover, in a mathematical sense, his data are just as…

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[1] "Just Posting It" works, leads to new retraction in Psychology

Posted on September 17, 2013February 11, 2020 by Uri Simonsohn

The fortuitous discovery of new fake data. For a project I worked on this past May, I needed data for variables as different from each other as possible. From the data-posting journal Judgment and Decision Making I downloaded data for ten, including one from a now retracted paper involving the estimation of coin sizes. I created…

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© 2021, Uri Simonsohn, Leif Nelson, and Joseph Simmons. For permission to reprint individual blog posts on DataColada please contact us via email..