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:Verifiability - Misplaced Pages

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This page documents an English Misplaced Pages policy.It describes a widely accepted standard that editors should normally follow, though exceptions may apply. Changes made to it should reflect consensus.Shortcut
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The policy:

1. Articles should contain only material that has been published by reliable sources.
2. Editors adding new material to an article should cite a reliable source, or it may be challenged or removed by any editor.
3. The obligation to provide a reliable source lies with the editors wishing to include the material, not on those seeking to remove it.


The threshold for inclusion in Misplaced Pages is verifiability, not truth. "Verifiable" in this context means that any reader should be able to check that material added to Misplaced Pages has already been published by a reliable source. Editors should provide a reliable source for material that is challenged or likely to be challenged, or it may be removed.

Misplaced Pages:Verifiability is one of Misplaced Pages's three content policies. The other two are Misplaced Pages:No original research and Misplaced Pages:Neutral point of view. Jointly, these policies determine the type and quality of material that is acceptable in the main namespace. They should not be interpreted in isolation from one another, and editors should try to familiarize themselves with all three. The principles upon which these policies are based are negotiable only at the Foundation level.

Burden of evidence

For how to write citations, see Misplaced Pages:Citing sources

The burden of evidence lies with the editors who have made an edit or wish an edit to remain. Editors should therefore provide references. If an article topic has no reputable, reliable, third-party sources, Misplaced Pages should not have an article on that topic.

Any edit lacking a source may be removed, but some editors may object if you remove material without giving people a chance to provide references. If you want to request a source for an unsourced statement, a good idea is to move it to the talk page. Alternatively, you may tag the sentence by adding the {{fact}} template, or tag the article by adding {{not verified}} or {{unsourced}}. Also in that case it may be helpful for your co-editors to leave a clarifying note on the talk page, for instance indicating which sources you already checked. You can also make the unsourced sentences invisible in the article by adding <!-- before the section you want to comment out and --> after it, until reliable sources have been provided. When using this "commenting out" technique it is usually best to leave a clarifying note on the talk page.

Be careful not to err too far on the side of not upsetting other editors by leaving unsourced information in articles for too long, or at all in the case of information about living people. Jimmy Wales has said of this: "I can NOT emphasize this enough. There seems to be a terrible bias among some editors that some sort of random speculative 'I heard it somewhere' pseudo information is to be tagged with a 'needs a cite' tag. Wrong. It should be removed, aggressively, unless it can be sourced. This is true of all information, but it is particularly true of negative information about living persons."

Burden of evidence in biographies of living persons

Biographies of living people need special care because biographies containing unsourced material might negatively affect someone's life and could have legal consequences. Remove unsourced material about living persons immediately if it could be viewed as criticism, and do not move it to the talk page. This also applies to material about living persons in other articles, as well as user and talk pages. See Misplaced Pages:Biographies of living persons and Misplaced Pages:Libel. When removing information be careful to observe Misplaced Pages:Civility.

Sources

Articles should rely on credible, third-party sources with a reputation for fact-checking and accuracy. For academic subjects, the sources should preferably be peer-reviewed. Sources should be appropriate to the claims made: outlandish claims require stronger sources.

English-language sources

English-language sources should be given whenever possible, and should always be used in preference to foreign-language sources, so that readers can easily verify that the source material has been used correctly.

Sources of dubious reliability

In general, sources of dubious reliability are sources with a poor reputation for fact-checking or with no fact-checking facilities or editorial oversight.

Sometimes a statement can only be found in a publication of dubious reliability, such as a tabloid newspaper. If the statement is relatively unimportant, remove it. If it is important enough to keep, attribute it to the source in question. For example: "According to the British tabloid newspaper The Sun..."

As a rule of thumb, sources of dubious reliability should only be used in articles about themselves. (See below.) However, even those articles should not – on the grounds of needing to give examples of the source's track record – repeat any potentially libellous claims the source has made about third parties, unless those claims have also been published by more credible sources.

Self-published sources (online and paper)

Anyone can create a website or pay to have a book published, and then claim to be an expert in a certain field. For that reason, self-published books, personal websites, and blogs are largely not acceptable as sources.

Exceptions may be when a well-known, professional researcher in a relevant field, or a well-known professional journalist has produced self-published material. In some cases, these may be acceptable as sources, so long as their work has been previously published by reliable third-party publications. However, exercise caution: if the information in question is really worth reporting, someone else is likely to have done so.

Self-published and dubious sources in articles about themselves

Material from self-published sources, and other published sources of dubious reliability, may be used as sources of information about themselves in articles about themselves, so long as:

  • It is relevant to the person's or organization's notability;
  • It is not contentious;
  • It is not unduly self-serving;
  • It does not involve claims about third parties, or about events not directly related to the subject;
  • There is no reasonable doubt about who wrote it.

See also

Notes

  1. See Help:Editing#Basic text formatting: "Invisible comments to editors only appear while editing the page. If you wish to make comments to the public, you should usually go on the talk page."
  2. ^ Jimmy Wales (2006-05-16). ""Zero information is preferred to misleading or false information"". WikiEN-l electronic mailing list archive. Retrieved 2006-06-11.
  3. ^ Jimmy Wales (2006-05-19). ""Zero information is preferred to misleading or false information" (followup post clarifying intent)". WikiEN-l electronic mailing list archive. Retrieved 2006-06-11.

Further reading

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