The NAS published the full report The Irreproducibility Crisis of Modern Science: Causes, Consequences, and the Road to Reform on April 17, 2018. We invite readers to consider our findings and submit responses in the form of articles via email to These articles will be posted on the home page as well as in the Forum section below.


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A reproducibility crisis afflicts a wide range of scientific and social-scientific disciplines, from epidemiology to social psychology. Improper use of statistics, arbitrary research techniques, lack of accountability, political groupthink, and a scientific culture biased toward producing positive results together have produced a critical state of affairs. Many supposedly scientific results cannot be reproduced in subsequent investigations.

This study examines the different aspects of the reproducibility crisis of modern science. The report also includes a series of policy recommendations, scientific and political, for alleviating the reproducibility crisis.