How to Ensure that the Results are Free of Bias

  • Christopher J. Bulpitt
Part of the Developments in Biostatistics and Epidemiology book series (DBEP, volume 1)


Biased results are distorted and prejudiced in favour of one treatment or another. When discussing the assessment of a patient’s progress in a trial, Bradford Hill [8] wrote, “the judgements must be made without any possibility of bias, without any overcompensation for a possible bias, and without any possibility of accusation of bias.”


Active Treatment Serum Uric Acid Placebo Effect Placebo Treatment Dietary Advice 
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Copyright information

© Springer Science+Business Media Dordrecht 1983

Authors and Affiliations

  • Christopher J. Bulpitt
    • 1
    • 2
    • 3
  1. 1.Department of Medical Statistics and EpidemiologyLondon School of Hygiene and Tropical MedicineLondonUK
  2. 2.Royal Postgraduate Medical SchoolLondonUK
  3. 3.Hammersmith HospitalLondonUK

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