Intended for healthcare professionals


Sixty seconds on . . . P-hacking

BMJ 2018; 362 doi: (Published 26 September 2018) Cite this as: BMJ 2018;362:k4039
  1. Nigel Hawkes
  1. London, UK

Sounds uncomfortable

It’s proved so for Brian Wansink, a prominent food researcher who has resigned from his post at Cornell University after six papers were retracted by JAMA and its specialty journals over suspicions of P-hacking.1

Which is?

Playing around with data until you find a correlation that meets the statistical standard for significance, which is P less than 0.05.

Remind me what P is

P measures …

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