Intended for healthcare professionals

Letters Hans Eysenck: controversialist or worse?

Good research requires self belief tempered with self doubt

BMJ 2019; 367 doi: (Published 31 October 2019) Cite this as: BMJ 2019;367:l6225
  1. Martin A Yuille, reader in biobanking and codirector
  1. Centre for Integrated Genomic Medical Research (CIGMR), Stopford Building, Manchester M13 9PT, UK
  1. martin.yuille{at}

The cautionary tale about Hans Eysenck is as much about hubris as hypothesis.1 Hypothesis based research is widely thought to be superior to the “fishing expeditions” of hypothesis-free research. But neither is better than the other.

The problem with hypothesis based research is that the originator of …

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