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August 7, 2019

Is It Time to Ban the P Value?

Author Affiliations
  • 1Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, California
JAMA Psychiatry. 2019;76(12):1219-1220. doi:10.1001/jamapsychiatry.2019.1965

For more than 20 years, there have been rumbles about banning the P value,1-3 because it is so often misused, miscomputed, and, even when used and computed correctly, misinterpreted. Consequently, findings that affect medical decision-making, policy, and research are often misled by the very research that is supposed to provide their evidence base.4 Recently, such rumbles have increased.5-7 Is now the time to ban the P value in all medical research?

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