Bias Wiki

 Index of biases | Editing advice | You can always return to this Home page by clicking the 'Bias wiki' title at the top left of any page

Welcome to the CEBM 'Bias Wiki'
This is the draft version of the 'Catalogue of Bias' developed at Oxford's Centre for Evidence Based Medicine (CEBM). This working document is a cumulative repository to codify all the forms of bias that can influence research methodology. This resource will allow researchers better to understand the potential impact of biases, and thus ensure their study design mitigates these factors as far as possible. The ultimate aim is to improve the quality of evidence that informs medical practice, thus improving the practice of medicine itself to the benefit of patients."'Forewarned is forearmed!'"

Advice on adding or editing a topic page
It would be great if you are willing to help! Go to the 'Bias wiki page editing advice' page for more information. Index entries in bold have a page set up for them already. Many are stubs only (i.e. have headings, but no content). As pages are added, the index will be updated.

Background
A workshop was held on 20 June 2018, during the Evidence Live conference in Oxford. About 30 researchers, clinicians, and others concerned with the production, collation and dissemination of high quality evidence attended [see picture]. They were asked how to develop the 'Catalogue of Bias' project which had been started by Carl Heneghan, David Nunan and Jeffrey Aronson, at the Centre for Evidence Based Medicine (CEBM) in Oxford. In the absence of specific funding to support this development, the suggestion was made to crowd source the development of the catalogue, using a wiki approach to allow a draft version of the catalogue to be created and honed before being uploaded to the CEBM website. This is the outcome of that workshop.

Bias topic page layout
This wiki has a page for each of the biases identified by the CEBM team. New ones will be added as needed. We use a standard layout for each bias: In addition there are a few administration pages:
 * 1) Title
 * 2) Brief definition
 * 3) Background
 * 4) Example
 * 5) Impact
 * 6) Preventative steps
 * 7) Sources
 * 8) PubMed feed
 * 9) Related biases
 * This home page
 * Index of biases
 * Bias wiki page editing advice

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