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<noinclude>{{short description|Content guideline for determining the reliability of a source}}{{pp-semi-indef|small=yes}}</noinclude>
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{{for-multi|community input on the reliability of a source|Misplaced Pages:Reliable sources/Noticeboard|a list of frequently discussed sources|Misplaced Pages:Reliable sources/Perennial sources}}
{{For|the Misplaced Pages ''policy'' on reliable sources|Misplaced Pages:Verifiability#Reliable sources}}
{{subcat guideline|content guideline|Reliable sources|WP:RS|WP:RELY|WP:RELIABLE|WP:RELIABILITY}}
{{nutshell|Misplaced Pages requires ] for any material challenged or likely to be challenged, and for all quotations. If you are new to editing and just need a general overview of how sources work, please visit the ].}}
<!--EDITORS, PLEASE NOTE: <!--EDITORS, PLEASE NOTE:
BEFORE ADDING MATERIAL TO THIS PAGE, PLEASE CHECK THAT IT IS NOT ALREADY INCLUDED IN ] OR ], WHICH ARE THE POLICY PAGES ON SOURCES. REPETITION IS POINTLESS, AND INCONSISTENCY IS WORSE THAN POINTLESS. MANY THANKS.--> BEFORE ADDING MATERIAL TO THIS PAGE, PLEASE CHECK THAT IT IS NOT ALREADY INCLUDED IN ] OR ], WHICH ARE THE POLICY PAGES ON SOURCES. REPETITION IS POINTLESS, AND INCONSISTENCY IS WORSE THAN POINTLESS. MANY THANKS.-->
{{Guideline list}}
{{subcat guideline|content guideline|Reliable sources|WP:RS|WP:RELY|WP:RELIABLE}}


Misplaced Pages articles should be based on '''reliable, published sources''', making sure that {{strong|all majority and significant minority views}} that have appeared in those sources are covered ({{crossref|see ]}}). If no reliable sources can be found on a topic, ].
{{nutshell|Articles should be based on '''reliable, third-party, published''' sources with a reputation for fact-checking and accuracy.}}


This page is a guideline discussing the reliability of particular types of sources. It is not a policy: the relevant policies on sources are ] and ], with additional restrictions in ]. See ] for queries about the reliability of particular sources. This guideline discusses the reliability of various types of sources. The policy on sourcing is ], which requires ] for any material challenged or likely to be challenged, and for all quotations. The verifiability policy is strictly applied to all material in the mainspace—articles, lists, and sections of articles—without exception, and in particular to ], which states:


{{quote|Contentious material about living persons (or, ]) that is unsourced or poorly sourced—whether the material is negative, positive, neutral, or just questionable—must be removed immediately and without waiting for discussion.}}
Because ], in the case of an inconsistency between this page and either Verifiability or No original research, this page should be updated to accurately reflect the policy as presented on those pages.


In the event of a contradiction between this guideline and our policies regarding sourcing and attribution, the policies take priority and editors should seek to resolve the discrepancy. Other policies relevant to sourcing are ] and ]. For questions about the reliability of particular sources, see ].
Misplaced Pages articles should cover all major and significant-minority views that have been published by reliable sources; however, this ], and there is no requirement that any individual reliable source is used, provided the neutral point of view, as spelt out in ] and explained in ], is maintained.


==Overview==
==Reliability of specific source types==
{{see|Misplaced Pages:Verifiability} {{further|Misplaced Pages:Neutral point of view#Good research}}
{{shortcut|WP:REPUTABLE}}
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Articles should rely on reliable, third-party published sources with a reputation for fact-checking and accuracy. This is fundamental to the encyclopedia's policies. Sources should be appropriate to the claims made. These specific examples cover only some of the possible types of reliable sources and source reliability issues, and are not intended to be exhaustive. The appropriateness of any source always depends on the context, which is a matter of common sense and editorial judgment.
Articles should be based on reliable, ], published sources with a reputation for fact-checking and accuracy. This means that we publish only the analysis, views, and opinions of reliable authors, and not those of Wikipedians, who have read and interpreted primary source material for themselves. The following examples cover only some of the possible types of reliable sources and source reliability issues, and are not intended to be exhaustive. Proper sourcing ''always'' depends on context; common sense and editorial judgment are an indispensable part of the process.


===Scholarship=== ===Definition of a source===
{{shortcut|WP:SOURCEDEF}}
Many Misplaced Pages articles rely upon source material created by scientists, scholars, and researchers. This is usually considered reliable, although some material may be outdated by more recent research, or controversial in the sense that there are alternative theories. Misplaced Pages articles should strive to cover all major and significant-minority scholarly interpretations on topics for which scholarly sources exist, and all major and significant-minority views that have been published in other reliable sources, as appropriate.
A ''source'' is where the material comes from. For example, a source could be a book or a webpage. A source can be reliable or unreliable for the material it is meant to support. Some sources, such as unpublished texts and an editor's own personal experience, are prohibited.


When editors talk about sources that are being cited on Misplaced Pages, they might be referring to any one of these three concepts:
* Material that has been vetted by the scholarly community is regarded as reliable; this means published in peer-reviewed sources, and reviewed and judged acceptable scholarship by the academic journals.
* The piece of work itself (the article, book)
* Items that are recommended in scholarly bibliographies are welcomed.
* The creator of the work (the writer, journalist)
* Items that are signed are preferable to unsigned articles.
* The publisher of the work (for example, ] or ])
* In science, single studies are usually considered tentative evidence that can change in the light of further scientific research. How reliable a single study is considered depends on the field, with studies relating to very complex and not entirely-understood fields, such as ], being less definitive. If single studies in such fields are used, care should be taken to respect their limits, and not to give ] to their results. Meta-analyses and systematic reviews, which combine the results of multiple studies, are preferred (where they exist).

* Peer reviewed scientific journals differ in their standards. Some court controversy, and some have even been created for the specific purpose of promoting ] that depart significantly from the mainstream views in their field. Many of these have been created or sponsored by advocacy groups. Such journals are not reliable sources for anything beyond the views of the minority positions they are associated with.
{{strong|Any of the three can affect reliability.}} Reliable sources may be published materials with a reliable publication process, authors who are regarded as authoritative in relation to the subject, or both. These qualifications should be demonstrable to other people.

===Definition of ''published''===
{{redirect-distinguish2|WP:PUBLISHED|] (])}}
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'']'' means, for Misplaced Pages's purposes, any source that was ''made available to the public in some form''. The term is most commonly associated with text materials, either in traditional printed format or online; however, audio, video, and multimedia materials that have been recorded then broadcast, distributed, or archived by a reputable party may also meet the necessary criteria to be considered reliable sources. Like text, media must be produced by a reliable source and be properly cited. Additionally, an archived copy of the media must exist. It is convenient, but by no means necessary, for the archived copy to be accessible via the Internet.

===Context matters===
{{shortcut|WP:CONTEXTMATTERS|WP:RSCONTEXT}}
The reliability of a source depends on context. Each source must be carefully weighed to judge whether it is reliable for the statement being made in the Misplaced Pages article and is an appropriate source for that content.

In general, the more people engaged in checking facts, analyzing legal issues, and scrutinizing the writing, the more reliable the publication. Sources should {{em|directly support}} the information as it is presented in the Misplaced Pages article.

Information provided in passing by an otherwise reliable source or information that is not related to the principal topics of the publication may not be reliable; editors should cite sources focused on the topic at hand where possible. For example, a publisher's web site is likely to be reliable for an author's identity, date of publication, etc., but not necessarily for a critical, artistic, or commercial evaluation of the work {{See below|{{slink||Reliability in specific contexts}}, below}}.

===Age matters===
{{shortcut|WP:AGE MATTERS|WP:RSAGE|WP:OLDSOURCES}}
Especially in scientific and academic fields, older sources may be inaccurate because new information has been brought to light, new theories proposed, or vocabulary changed. In areas like politics or fashion, laws or trends may make older claims incorrect. Be sure to check that older sources have not been superseded, especially if it is likely that new discoveries or developments have occurred in the last few years. In particular, ].

Sometimes sources are too ''new'' to use, such as with ] (where later reports might be more accurate), and primary sources which purport to debunk a long-standing consensus or introduce a new discovery (in which case awaiting studies that attempt to replicate the discovery might be a good idea, or reviews that validate the methods used to make the discovery).

Similarly for breaking news, a contemporary secondary news source can quickly become a historical primary source. Articles of recent current events ] with new secondary sources.

Sources of any age may be prone to ], and this needs to be balanced out by careful editing.

===Usage by other sources===
{{Shortcut|WP:UBO|WP:USEBYOTHERS}}
How accepted and high-quality reliable sources use a given source provides evidence, positive or negative, for its reliability and reputation. The more widespread and consistent this use is, the stronger the evidence. For example, widespread citation without comment for facts is evidence of a source's reputation and reliability for similar facts, whereas widespread doubts about reliability weigh against it. If outside citation is the main indicator of reliability, particular care should be taken to adhere to other guidelines and policies, and to not unduly represent contentious or minority claims. The goal is to reflect established views of a topic as far as we can determine them.

==Some types of sources==
{{shortcut|WP:SOURCETYPES}}
{{further|Misplaced Pages:Verifiability#Reliable sources|Misplaced Pages:Verifiability#Verifiability does not guarantee inclusion}}
Many Misplaced Pages articles rely on scholarly material. When available, academic and peer-reviewed publications, scholarly monographs, and textbooks are usually the most reliable sources. However, some scholarly material may be outdated, in competition with alternative theories, controversial within the relevant field, or largely ignored by the mainstream academic discourse because of lack of citations. Try to cite current scholarly consensus when available, recognizing that this is often absent. Reliable non-academic sources may also be used in articles about scholarly issues, particularly material from high-quality mainstream publications. Deciding which sources are appropriate depends on context. Material should be ] where ].

===Scholarship===
{{shortcut|WP:SCHOLARSHIP}}
* '''Prefer secondary sources''' – Articles should rely on secondary sources whenever possible. For example, a paper reviewing existing research, a review article, monograph, or textbook is often better than a primary research paper. When relying on primary sources, extreme caution is advised. Wikipedians should never interpret the content of primary sources for themselves ({{crossref|see ] and ]}}).
* '''Reliable scholarship''' – Material such as an article, book, monograph, or research paper that has been vetted by the scholarly community is regarded as reliable, where the material has been published in reputable peer-reviewed sources or by well-regarded academic presses.
* '''Dissertations''' – Completed dissertations or theses written as part of the requirements for a doctorate, and which are publicly available (most via interlibrary loan or from ]), can be used but care should be exercised, as they are often, in part, primary sources. Some of them will have gone through a process of academic peer reviewing, of varying levels of rigor, but some will not. If possible, use theses that have been cited in the literature; supervised by recognized specialists in the field; or reviewed by independent parties. Dissertations in progress have not been vetted and are not regarded as published and are thus not reliable sources as a rule. Some theses are later published in the form of scholarly monographs or peer reviewed articles, and, if available, these are usually preferable to the original thesis as sources. Masters dissertations and theses are considered reliable only if they can be shown to have had significant scholarly influence.
* '''Citation counts''' – One may be able to confirm that discussion of the source has entered mainstream academic discourse by checking what scholarly citations it has received in ]es or lists such as ]. Works published in journals not included in appropriate databases, especially in fields well covered by them, might be isolated from mainstream academic discourse, though whether it is appropriate to use will depend on the context. The number of citations may be misleading if an author cites ] often.
* '''Isolated studies''' – Isolated studies are usually considered tentative and may change in the light of further academic research. If the isolated study is a primary source, it should generally not be used if there are secondary sources that cover the same content. The reliability of a single study depends on the field. Avoid ] when using single studies in such fields. Studies relating to complex and ] fields, such as ], are less definitive and should be avoided. Secondary sources, such as ], textbooks, and scholarly ] are preferred when available, so as to provide proper context.
* <span id="QUESTIONABLEJOURNAL"></span>'''POV and peer review in journals''' – Care should be taken with journals that exist mainly to promote a particular point of view. A claim of peer review is not an indication that the journal is respected, or that any meaningful peer review occurs. Journals that are not peer reviewed by the wider academic community should not be considered reliable, except to show the views of the groups represented by those journals.<ref group="notes">Examples include ''The Creation Research Society Quarterly'' and ''Journal of Frontier Science'' (the latter uses ). {{Webarchive|url=https://web.archive.org/web/20190420060736/http://jfspeerreview.blogspot.com/|date=2019-04-20}}).</ref>
* {{anchor|Predatory journals}}'''Predatory journals''' – ]s are of very low quality and have only token peer-review, if any. These journals publish whatever is submitted if the author is willing to pay a fee. Some go so far as to mimic the names of established journals (]).<ref>{{cite web |last=Beall |first=Jeffrey |authorlink=Jeffrey Beall |date=1 January 2015 |title=Criteria for Determining Predatory Open-Access Publishers |edition=3rd |publisher=Scholarly Open Access |url=http://scholarlyoa.com/2012/11/30/criteria-for-determining-predatory-open-access-publishers-2nd-edition/ |archive-url=https://web.archive.org/web/20170105195017/https://scholarlyoa.files.wordpress.com/2015/01/criteria-2015.pdf| archive-date=5 January 2017}}</ref><ref name=NYT4713>{{cite news |last=Kolata |first=Gina |authorlink=Gina Kolata |date=April 7, 2013 |title=Scientific Articles Accepted (Personal Checks, Too) |newspaper=] |url=http://www.nytimes.com/2013/04/08/health/for-scientists-an-exploding-world-of-pseudo-academia.html |accessdate=April 11, 2013 |archive-url=https://web.archive.org/web/20130411001403/http://www.nytimes.com/2013/04/08/health/for-scientists-an-exploding-world-of-pseudo-academia.html |archive-date=April 11, 2013 |url-status=live |df=mdy-all }}</ref><ref name=Nature032713>{{cite journal |last=Butler |first=Declan |date=March 28, 2013 |title=Sham journals scam authors: Con artists are stealing the identities of real journals to cheat scientists out of publishing fees |journal=Nature |volume=495 |issue=7442 |pages=421–422 |doi=10.1038/495421a |pmid=23538804 |s2cid=242583 |url=http://www.nature.com/news/sham-journals-scam-authors-1.12681 |accessdate=April 11, 2013 |archive-url=https://web.archive.org/web/20130413064730/http://www.nature.com/news/sham-journals-scam-authors-1.12681 |archive-date=April 13, 2013 |url-status=live |df=mdy-all }}</ref><ref>{{cite journal |last=Bohannon |first=John |authorlink=John Bohannon |date=4 October 2013 |title=Who's afraid of peer review? |journal=Science |doi=10.1126/science.342.6154.60 |pmid=24092725 |volume=342 |issue=6154 |pages=60–65}}</ref><ref>{{cite news|url=https://www.nytimes.com/2017/10/30/science/predatory-journals-academics.html|title=Many Academics Are Eager to Publish in Worthless Journals|first=Gina|last=Kolata|date=30 October 2017|accessdate=2 November 2017|newspaper=]|archive-url=https://web.archive.org/web/20171108014011/https://www.nytimes.com/2017/10/30/science/predatory-journals-academics.html|archive-date=8 November 2017|url-status=live|df=dmy-all}}</ref> The lack of reliable peer review implies that articles in such journals should ''at best'' be treated similarly to ].<ref group="notes">Many submissions to these predatory journals will be by scholars that a) cannot get their theories published in legitimate journals, b) were looking to quickly publish something to boost their academic resumes, or c) were honestly looking for a legitimate peer-review process to validate new ideas, but were denied the feedback by fraudulent publishers.</ref> If you are unsure about the quality of a journal, check that the editorial board is based in a respected ], and that it is included in the relevant high-quality ]—be wary of indexes that merely list almost all publications, and do not vet the journals they list. ({{crossref|See also {{slink|Misplaced Pages:Identifying reliable sources (medicine)#Predatory journals}}.}})
* {{anchor|Preprints}}{{shortcut|WP:PREPRINT|WP:PREPRINTS}}'''Preprints''' – ]s, such as those available on repositories like ], ], ], or ] are not reliable sources. Research that has not been peer-reviewed is akin to a blog, as anybody can post it online. Their use is generally discouraged, unless they meet the criteria for acceptable use of ], and will always fail higher sourcing requirements like ]. However, links to such repositories can be used as open-access links for papers which have been subsequently published in acceptable literature.


===News organizations=== ===News organizations===
{{shortcut|WP:NEWSORG}}
{{see|Misplaced Pages:Verifiability|Misplaced Pages:Biographies of living persons}}
Material from mainstream news organizations is welcomed, particularly the high-quality end of the market, such as the ''The Washington Post'', ''The Times'' of London, and ''The Associated Press''. When citing opinion pieces in newspapers and magazines, in-text attribution should be used if the material is contentious. When adding contentious biographical material about living persons that relies upon news organizations, only material from high-quality news organizations should be used.


News sources often contain both factual content and opinion content. News reporting from well-established news outlets is generally considered to be reliable for statements of fact (though even the most reputable reporting sometimes contains errors). News reporting from less-established outlets is generally considered less reliable for statements of fact. Most newspapers also reprint items from ] such as ], ], ], ] or the ], which are responsible for accuracy. The agency should be cited in addition to the newspaper that reprinted it.
===Self-published sources===
{{main|Misplaced Pages:Verifiability#Self-published sources (online and paper)}}
Self-published sources may be used only in very limited circumstances; see above.


* Scholarly sources and high-quality non-scholarly sources are generally better than news reports for academic topics {{see above|{{slink||Scholarship}}, above}}. Press releases from organizations or journals are often used by newspapers with minimal change; such sources are ] and should not be treated differently than the underlying press release. Occasionally, some newspapers still have specialist reporters who are citable by name. ({{crossref|For topics relating to health or medicine, see {{slink||Medical claims}}, below}}.)
===Extremist and fringe sources===
* Otherwise reliable news sources—for example, the website of a major news organization—that publish in a blog-style format for some or all of their content may be as reliable as if published in standard news article format ({{crossref|See also {{slink|Misplaced Pages:Verifiability|Newspaper and magazine blogs}} }}).
{{main|Misplaced Pages:Verifiability#Questionable_sources|Misplaced Pages:Fringe theories}}
* Signals that a news organization engages in fact-checking and has a reputation for accuracy are the publication of ] and disclosures of ].
Organizations and individuals that express views that are widely acknowledged as extremist should be used only as sources about themselves '''in articles about themselves or their activities''', and any information used must be directly relevant to the subject and their cause of notability. Articles using such sources should not repeat any contentious claims, or any claims made about third parties, unless those claims have also been published by reliable sources. Finally, these sources should never form the primary source for an article.
* ] is generally not as reliable as news reporting, and may not be subject to the same rigorous standards of fact-checking and accuracy (see ]).<ref>{{cite news |last=Miller |first=Laura |date=October 16, 2011 |title='Sybil Exposed': Memory, lies and therapy |work=] |publisher=Salon Media Group |url=https://www.salon.com/2011/10/16/sybil_exposed_memory_lies_and_therapy/ |accessdate=October 17, 2011 |quote=] also documents a connection between Schreiber and Terry Morris, a 'pioneer' of this genre who freely admitted to taking 'considerable license with the facts that are given to me.' |archive-url=https://web.archive.org/web/20111016222231/http://www.salon.com/2011/10/16/sybil_exposed_memory_lies_and_therapy/ |archive-date=October 16, 2011 |url-status=live |df=mdy-all }}</ref>
* The reporting of rumors has a limited encyclopedic value, although in some instances verifiable information ''about'' rumors may be appropriate (i.e. if the rumors themselves are noteworthy, regardless of whether or not they are true). ] for passing along ] and ]s.
* Some news organizations have used Misplaced Pages articles as a source for their work. Editors should therefore beware of ].<ref group=notes>A variety of these incidents have been documented by '']'' and others and discussed on Misplaced Pages, where incorrect details from articles added as ] or otherwise have appeared in newspapers</ref>
* Whether a {{em|specific}} news story is reliable for a fact or statement should be examined on a case-by-case basis.
* Multiple sources should not be asserted for any ] article. Such sources are essentially a single source.
* Unless reported by a reliable source, leaks should not normally be used or cited directly in articles.


==== Editorial and opinion commentary ====
Organizations and individuals that promote what are widely agreed to be fringe theories (that is, views held by a small minority, in direct contrast with the mainstream view in their field), such as ] or ]) should only be used as sources about themselves or, if correctly attributed as being such, to summarize the views of the proponents of that subject. Use of these sources must not obfuscate the description of the mainstream view, nor should these fringe sources be used to describe the mainstream view or the level of acceptance of the fringe theory. When using such sources, reliable mainstream sources must be found in order to allow the dispute to be characterized fairly, presenting the mainstream view as the mainstream, and the fringe theory as a minority fringe view.
{{shortcut|WP:NEWSOPED|WP:RSEDITORIAL}}


Editorial commentary, analysis and ]s, whether written by the editors of the publication (]s) or outside authors (invited ]s and ] from notable figures) are reliable primary sources for ], but are rarely reliable for statements of fact {{See below|also {{slink||Statements of opinion}}, below}}.
===Reliability in specific contexts===
====Biographies of living persons====
:''See ]''


* When taking information from opinion content, the identity of the author may help determine reliability. The opinions of specialists and recognized experts are more likely to be reliable and to reflect a significant viewpoint.<ref group=notes>Please keep in mind that any exceptional claim would require ], and this is policy.</ref> If the statement is not authoritative, attribute the opinion to the author in the text of the article and do not represent it as fact. Reviews for books, movies, art, etc. can be opinion, summary, or scholarly pieces.<ref name="Princeton">{{cite web |year=2011 |title=Book reviews |publisher=Princeton |work=Scholarly definition document |url=http://wordnetweb.princeton.edu/perl/webwn?s=book%20review |accessdate=September 22, 2011 |archive-url=https://web.archive.org/web/20111105055403/http://wordnetweb.princeton.edu/perl/webwn?s=book%20review |archive-date=November 5, 2011 |url-status=live |df=mdy-all }}</ref><ref name="VirginiaTech">{{cite web |year=2011 |title=Book reviews |publisher=Virginia Polytechnic Institute and State University |work=Scholarly definition document |url=http://www.lib.vt.edu/find/byformat/bookreviews.html |accessdate=September 22, 2011 |archive-url=https://web.archive.org/web/20110910082750/http://www.lib.vt.edu/find/byformat/bookreviews.html |archive-date=September 10, 2011 |url-status=dead |df=mdy-all }}</ref>
Editors must take particular care when writing biographical material about living persons, for legal reasons and in order to be fair. Remove unsourced or poorly sourced contentious material immediately if it is about a living person, and do not move it to the talk page. This applies to any material related to living persons on ''any'' page in ''any'' ], not just article space.
* Some news organizations may not publish their editorial policies.


==== Claims of consensus ==== ==== News aggregators ====
Some websites function partly or entirely as aggregators, reprinting items from websites of news agencies, blogs, websites, or even Misplaced Pages itself. These may constitute a curated feed or an AI-generated feed. Examples include the main pages of ] and ]. As with newspaper reprints, the original content creator is responsible for accuracy and '''reliability should be judged based on the original source'''. Direct links to the original source should be preferred over the aggregator's link.
Claims of consensus must be sourced. The claim that all or most scientists, scholars, or ministers hold a certain view requires a reliable source. Without it, opinions should be identified as those of particular, named sources.


===<span id="E-commerce sources"></span>Vendor and e-commerce sources===
====Other examples====
{{Shortcut|WP:VENDOR|WP:AFFILIATE}}
See ] for examples of the use of statistical data, advice by subject area (including history, physical sciences, mathematics and medicine, law, business and commerce, popular culture and fiction), and the use of electronic or online sources.
Although the content guidelines for ] prohibit linking to "Individual web pages that primarily exist to sell products or services", inline citations may be allowed to e-commerce pages such as that of a book on a bookseller's page or an album on its streaming-music page, in order to ] such things as titles and running times. Journalistic and academic sources are preferable, however, and e-commerce links should be replaced with reliable non-commercial sources if available.

Rankings proposed by vendors (such as bestseller lists at Amazon) usually have at least one of the following problems:
# It may be impossible to provide a stable source for the alleged ranking.
# When only self-published by the vendor, i.e. no reliable independent source confirming the ranking as being relevant, the ranking would usually carry insufficient weight to be mentioned in any article.
For such reasons, such rankings are usually avoided as Misplaced Pages content.

===Biased or opinionated sources===
{{shortcut|WP:BIASED|WP:PARTISAN|WP:BIASEDSOURCES|WP:ACCORDINGTO}}
{{See also|Misplaced Pages:Neutral point of view#Bias in sources}}
Misplaced Pages articles are required to present a ]. However, reliable sources are not required to be neutral, unbiased, or objective. Sometimes non-neutral sources are the best possible sources for supporting information about the different viewpoints held on a subject.

Common sources of bias include political, financial, religious, philosophical, or other beliefs. Although a source may be biased, it may be reliable in the specific ]. When dealing with a potentially biased source, editors should consider whether the source meets the normal requirements for reliable sources, such as editorial control, a reputation for fact-checking, and the level of independence from the topic the source is covering. Bias may make ] appropriate, as in "The feminist ] wrote that..."; "According to the Marxist economist ]..."; or "The conservative Republican presidential candidate ] believed that...".

== {{anchor|Self-published and questionable sources}}Questionable and self-published sources ==
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{{main|Misplaced Pages:Verifiability#Reliable sources}}
===Questionable sources===
{{Shortcut|WP:QUESTIONABLE|WP:QUESTIONED}}
Questionable sources are those with a poor reputation for checking the facts or with no editorial oversight. Such sources include websites and publications expressing views that are widely acknowledged as extremist, that are promotional in nature, or that rely heavily on rumors and personal opinions.<ref>{{cite web|url=http://nymag.com/selectall/2016/11/fake-facebook-news-sites-to-avoid.html|work=New York Magazine|title=Fake Facebook news sites to avoid|first=Madison|last=Malone Kircher|date=November 15, 2016|accessdate=November 15, 2016|archive-url=https://web.archive.org/web/20161116153727/http://nymag.com/selectall/2016/11/fake-facebook-news-sites-to-avoid.html|archive-date=November 16, 2016|url-status=live|df=mdy-all}}</ref> Questionable sources are generally unsuitable for citing contentious claims about third parties, which includes claims against institutions, persons living or dead, as well as more ill-defined entities. The proper uses of a questionable source are very limited.

Beware of sources that sound reliable but do not have the ] that this guideline requires.<ref name=DM>An example is the '']'', which is broadly considered a questionable and prohibited source, per ].</ref> The ''Journal of 100% Reliable Factual Information'' might have a reputation for "]" behavior, which includes questionable business practices and/or peer-review processes that raise concerns about the reliability of their journal articles.<ref name=Beall1>{{cite journal |last=Beall |first=Jeffrey |authorlink=Jeffrey Beall |date=25 February 2015 |title='Predatory' Open-Access Scholarly Publishers |journal=] |url=http://eprints.rclis.org/25046/1/Rahman%20and%20Engels_%202015_Predatory%20open%20access%20journals.pdf |access-date=7 January 2016 |archive-url=https://web.archive.org/web/20160304201837/http://eprints.rclis.org/25046/1/Rahman%20and%20Engels_%202015_Predatory%20open%20access%20journals.pdf |archive-date=4 March 2016 |url-status=live |df=dmy-all }}</ref><ref name="Beall2">{{cite web|last1=Beall|first1=Jeffrey|title=Potential, possible, or probable predatory scholarly open-access publishers|url=https://scholarlyoa.com/publishers/|archive-url=https://web.archive.org/web/20170111172306/https://scholarlyoa.com/publishers/|archive-date=11 January 2017}}</ref>

==== Sponsored content ====
{{Shortcut|WP:SPONSORED}}
{{see also|Misplaced Pages:Conflict of interest#Covert advertising}}
] is a paid advertisement that is formatted to look like an article or other piece of typical content for that outlet. The content may be directly controlled by the sponsor, or the advertiser may pay an author to create the content (e.g., ]). Advertisements can be cited, but they are ] and should be treated as ] and ] sources in articles. Reliable publications clearly indicate sponsored articles in the ] or with a ] at the top of the article. Sources that do not clearly distinguish staff-written articles from sponsored content are also questionable.

] are often (but far from always) unacceptable sources. They are commonly sponsored by industry groups with a financial interest in the outcome of the research reported. They may lack independent editorial oversight and ], with no supervision of content by the parent journal.<ref name=ICMJE_recommendations_2015>{{Citation| last = Fees| first = F.| title = Recommendations for the conduct, reporting, editing, and publication of scholarly work in medical journals| url = http://www.icmje.org/icmje-recommendations.pdf| date = 2016| access-date = 2019-01-12| archive-url = https://web.archive.org/web/20140305222129/http://www.icmje.org/icmje-recommendations.pdf| archive-date = 2014-03-05| url-status = live}} {{Webarchive|url=https://web.archive.org/web/20181230102758/http://www.icmje.org/recommendations/browse/roles-and-responsibilities/author-responsibilities--conflicts-of-interest.html |date=2018-12-30 }}, .</ref> Such articles do not share the reliability of their parent journal,<ref name="supp_quality">{{cite journal |last1=Rochon |first1=PA |last2=Gurwitz |first2=JH |last3=Cheung |first3=CM |last4=Hayes |first4=JA |last5=Chalmers |first5=TC |title=Evaluating the quality of articles published in journal supplements compared with the quality of those published in the parent journal. |journal=JAMA |date=13 July 1994 |volume=272 |issue=2 |pages=108–13 |pmid=8015117 |doi=10.1001/jama.1994.03520020034009 }}</ref> being essentially paid ] as academic articles. Such supplements, and those that do not clearly declare their editorial policy and conflicts of interest, should not be cited.

Indications that an article was published in a supplement may be fairly subtle; for instance, a letter "S" added to a page number,<ref>{{cite journal |last1=Nestle |first1=Marion |title=Food company sponsorship of nutrition research and professional activities: a conflict of interest? |journal=Public Health Nutrition |date=2 January 2007 |volume=4 |issue=5 |pages=1015–1022 |doi=10.1079/PHN2001253 |pmid=11784415 |s2cid=17781732 |url=https://www.cambridge.org/core/services/aop-cambridge-core/content/view/0DC05EE7794D352882D2F089111A0449/S1368980001001069a.pdf/food_company_sponsorship_of_nutrition_research_and_professional_activities_a_conflict_of_interest.pdf |access-date=12 January 2019 |archive-url=https://web.archive.org/web/20181117105015/https://www.cambridge.org/core/services/aop-cambridge-core/content/view/0DC05EE7794D352882D2F089111A0449/S1368980001001069a.pdf/food_company_sponsorship_of_nutrition_research_and_professional_activities_a_conflict_of_interest.pdf |archive-date=17 November 2018 |url-status=live |df=dmy-all }}</ref> or "Suppl." in a reference.<ref>See ] of how to identify shill academic articles cited in Misplaced Pages.</ref> However, note that merely being published in ''<u>a</u>'' supplement is not '']'' evidence of being published in a ''<u>sponsored</u>'' supplement. Many, if not most, supplements are perfectly legitimate sources, such as the '']'', '']'', '']'', or '']''. A sponsored supplement also does not necessarily involve a COI; for instance, public health agencies may also sponsor supplements. However, groups that do have a COI may hide behind layers of front organizations with innocuous names, so the ultimate funding sources should always be ascertained.

===Self-published sources (online and paper)===
{{anchor|Self-published sources|Self-published|SELF}}{{shortcut|WP:RSSELF|WP:RS/SPS}}
{{main|Misplaced Pages:Verifiability#Self-published sources}}

Anyone can create a ] or ] and claim to be an expert in a certain field. For that reason, self-published sources are largely not acceptable. Self-published books and newsletters, personal pages on social networking sites, ], and posts on ]s are all examples of self-published media. Self-published expert sources may be considered reliable when produced by an established expert on the subject matter, whose work in the relevant field has previously been published by reliable, independent publications. '''Never''' use self-published sources as ] about living people, even if the author is an expert, well-known professional researcher, or writer.

====User-generated content====
{{anchor|User-generated|USERG|UGC|WP:ABLUELINKISNOTASOURCE}}{{shortcut|WP:UGC|WP:USERG|WP:USERGENERATED}}
Content from websites whose content is largely ] is generally unacceptable. Sites with user-generated content include personal websites, personal and ] blogs (excluding ]), ]s, ]s, ], ]s, ] and ] hosting services, most ]s and other collaboratively created websites.

Examples of unacceptable user-generated sources are ], ], ], ], ], ], ], ], ], ], ], ], ], ], ], ], ], and ] (]). For official accounts from celebrities and organizations on social media, see the section about self-published sources below.

Although ]s (such as ] and ]) may be reliable when summarizing experts, the ratings and opinions of their users (including the reported rating averages) are not.

In particular, a ] is not a reliable source.

===Self-published and questionable sources as sources on themselves===
{{shortcut|WP:SELFSOURCE}}
{{See also|Misplaced Pages:Verifiability#Self-published or questionable sources as sources on themselves}}
{{Merge to|section=yes|Misplaced Pages:Verifiability#Self-published or questionable sources as sources on themselves|date=December 2023|reason=Near-exact duplicate sections, even down to the list items.|discuss=Misplaced Pages talk:Verifiability#Merge WP:SELFSOURCE to WP:ABOUTSELF}}
Self-published or questionable sources may be used as sources of information {{strong|about themselves}}, especially in articles about themselves, without the requirement that they be published experts in the field, so long as the following criteria are met:
# The material is neither unduly self-serving nor an ].
# It does not involve claims about third parties (such as people, organizations, or other entities).
# It does not involve claims about events not directly related to the subject.
# There is no reasonable doubt as to its authenticity.
# The Misplaced Pages article is not based primarily on such sources.

These requirements also apply to pages from social networking websites such as ], ], and ]. Use of self-sourced material should be '']''; the great majority of any article must be drawn from independent sources.

===Spurious sources produced by machine learning===
{{Shortcut|WP:RSML}}
In recent years, ] (ML, AI) has become a common way to generate and publish material. It may not be known or detectable that ML was used. While ML generation in itself does not necessarily disqualify a source that is properly checked by the person using it, ML has a tendency to create or "hallucinate" imaginary information, "supported" by citations that look as if they are from respectable sources but do not exist. In one case, a lawyer used ] to generate and file a legal brief that he did not check; the judge upon reviewing the case stated, "six of the submitted cases appear to be bogus judicial decisions with bogus quotes and bogus internal citations", although ChatGPT had assured the author that they were real and could "be found in reputable legal databases such as ] and ]".<ref>{{cite web | last=Moran | first=Lyle | title=Lawyer cites fake cases generated by ChatGPT in legal brief | website=Legal Dive | date=30 May 2023 | url=https://www.legaldive.com/news/chatgpt-fake-legal-cases-generative-ai-hallucinations/651557/}}</ref> Citations have been published to newspaper articles that do not exist, attributed to named reporters.<ref>{{cite web | last=Tangermann | first=Victor | title=Newspaper Alarmed When ChatGPT References Article It Never Published | website=Futurism | date=6 April 2023 | url=https://futurism.com/newspaper-alarmed-chatgpt-references-article-never-published}}</ref> Such spurious material may be generated unintentionally by writers—reporters, scientists, medical researchers, lawyers, ...—using ]s to help them to produce reports, or maliciously to generate "]".

==Reliability in specific contexts==
===Biographies of living persons===
{{main|Misplaced Pages:Biographies of living persons#Reliable sources}}

Editors must take particular care when writing biographical material about living persons. Contentious material about a living person that is unsourced or poorly sourced should be removed immediately; do not move it to the talk page. This applies to any material related to living persons on {{em|any}} page in {{em|any}} ], not just article space.

===Primary, secondary, and tertiary sources===
{{shortcut|WP:RSPRIMARY|WP:WPNOTRS}}
{{main|Misplaced Pages:No original research#Primary, secondary and tertiary sources}}

Misplaced Pages articles should be based mainly on reliable ], i.e., a document or recording that relates to or discusses information originally presented elsewhere.

Reputable ], such as introductory-level university textbooks, almanacs, and encyclopedias, may be cited. {{anchor|Misplaced Pages is not a reliable source}}However, although Misplaced Pages articles are tertiary sources, Misplaced Pages employs no systematic mechanism for fact-checking or accuracy. Thus, {{strong|Misplaced Pages articles (and Misplaced Pages mirrors) in themselves are not reliable sources for any purpose}} (except as sources on themselves per ]).

] are often difficult to use appropriately. Although they can be both reliable and useful in certain situations, they must be used with caution in order to avoid ]. Although specific facts may be taken from primary sources, secondary sources that present the same material are preferred. Large blocks of material based purely on primary sources should be avoided. All interpretive claims, analyses, or synthetic claims about primary sources must be referenced to a secondary source, rather than original analysis of the primary-source material by Misplaced Pages editors.

When editing articles in which the use of primary sources is a concern, in-line templates, such as {{tl|primary source-inline}} and {{tl|better source}}, or article templates, such as {{tl|primary sources}} and {{tl|refimprove science}}, may be used to mark areas of concern.

===Medical claims===
{{shortcut|WP:RS/MC}}
{{main|Misplaced Pages:Identifying reliable sources (medicine)}}
Ideal sources for ] information include ] or ]s in reliable, independent, published sources, such as reputable ]s, widely recognised standard textbooks written by experts in a field, or ]s and position statements from nationally or internationally reputable expert bodies. It is {{em|vital}} that the biomedical information in all types of articles be based on reliable, independent, published sources and accurately reflect current medical knowledge.

===Fringe theories===
{{seealso|Misplaced Pages:Fringe theories#Parity of sources}}
Inclusion and exclusion of content related to fringe theories and criticism of fringe theories may be done by means of a rough parity of sources. If an article is written about a well-known topic about which many peer-reviewed articles are written, it should not include fringe theories that may seem relevant but are only sourced to obscure texts that lack peer review. Parity of sources may mean that certain fringe theories are only reliably and verifiably reported on, or criticized, in alternative venues from those that are typically considered reliable sources for scientific topics on Misplaced Pages.

In an article on a fringe topic, if a notable fringe theory is primarily described by amateurs and self-published texts, verifiable and reliable criticism of the fringe theory need not be published in a peer-reviewed journal. For example, the ] article may include material from reliable websites, movies, television specials, and books that are not peer-reviewed. By ''parity of sources'', critiques of that material can likewise be gleaned from reliable websites and books that are not peer-reviewed. Of course, for any viewpoint described in an article, only reliable sources should be used; Misplaced Pages's verifiability and ] policies are not suspended simply because the topic is a fringe theory.

===Quotations===
{{shortcut|WP:RS/QUOTE}}
{{further|Misplaced Pages:Manual of Style#Quotations}}
The accuracy of quoted material is paramount and the accuracy of quotations from living persons is especially sensitive. To ensure accuracy, the text of quoted material is best taken from (and cited to) the original source being quoted. If this is not possible, then the text may be taken from a reliable secondary source (ideally one that includes a citation to the original). No matter where you take the quoted text from, it is important to ].

Partisan secondary sources should be viewed with suspicion as they may misquote or quote out of context. In such cases, look for neutral corroboration from another source.

Any analysis or interpretation of the quoted material, however, should rely on a secondary source ({{crossref|see ]}}).

===Academic consensus===
{{Shortcut|WP:RS/AC}}
A statement that all or most scientists or scholars hold a certain view requires reliable sourcing that directly says that all or most scientists or scholars hold that view. Otherwise, individual opinions should be identified as those of particular, named sources. Editors should avoid original research especially with regard to making blanket statements based on ]. Stated simply, any statement in Misplaced Pages that academic consensus exists on a topic must be sourced rather than being based on the opinion or assessment of editors. ]s, especially those printed in academic review journals that survey the literature, can help clarify academic consensus.

===Statements of opinion===
{{Shortcut|WP:RSOPINION}}
Some sources may be considered reliable for statements as to their author's opinion, but not for statements asserted as fact. For example, an inline qualifier might say " says....". A prime example of this is ]s in mainstream newspapers. When using them, it is best to clearly attribute the opinions in the text to the author and make it clear to the readers that they are reading an opinion {{See above|also {{slink||Editorial and opinion commentary}}, above}}.

There is an important exception to sourcing statements of fact {{em|or}} opinion: {{strong|Never use ] books, ]s, websites, webforums, ]s and ] as a source for material about a living person}}, unless written or published by the subject of the biographical material. "Self-published blogs" in this context refers to personal and group blogs; see {{section link|Misplaced Pages:Biographies of living persons|Reliable sources}} and {{section link|Misplaced Pages:Biographies of living persons|Using the subject as a self-published source}}.

The exception for statements ABOUTSELF is covered at {{Section link|Misplaced Pages:Verifiability#Self-published or questionable sources as sources on themselves}}.

===Breaking news===
{{Shortcut|WP:RSBREAKING}}
{{Further|Misplaced Pages:Biographies of living persons#Avoid gossip and feedback loops}}
{{See also|Misplaced Pages:Notability (events)#Breaking news}}
Breaking-news reports often contain serious inaccuracies. As an electronic publication, Misplaced Pages can and should be up to date, but ] and it does not need to go into all details of a current event in real time. It is better to wait a day or two after an event before adding details to the encyclopedia, than to help spread potentially false rumors. This gives journalists time to collect more information and verify claims, and for investigative authorities to make official announcements. The '']'' ''Breaking News Consumer's Handbook''<ref>{{Cite web|url=https://www.wnyc.org/story/breaking-news-consumers-handbook-pdf/|title=The Breaking News Consumer's Handbook {{!}} On the Media|website=WNYC|language=en|access-date=2019-03-14|archive-url=https://web.archive.org/web/20190228030728/https://www.wnyc.org/story/breaking-news-consumers-handbook-pdf/|archive-date=2019-02-28|url-status=live}}</ref> contains several suggestions to avoid spreading unreliable and false information. These include: distrust anonymous sources, unconfirmed reports, and reports attributed to other news media; seek multiple independent sources which independently verify; seek verified eyewitness reports; and be wary of potential hoaxes. With mass shootings, remain skeptical of early reports of additional attackers, coordinated plans, and bomb threats.

When editing a current-event article, keep in mind the tendency towards ]. Claims sourced to initial news reports should be immediately replaced with better-researched and verified sources as soon as such articles are published, especially if original reports contained inaccuracies. All breaking news stories, without exception, are primary sources, and must be treated with caution: see ''{{Section link|Misplaced Pages:No original research|Primary, secondary and tertiary sources}}'', ''{{Section link|Misplaced Pages:Identifying_and_using_primary_sources|Examples of news reports as primary sources}}''.

The {{tl|current}}, {{tl|recent death}}, or another ] may be added to the top of articles related to a breaking-news event to alert readers that some information in the article may be inaccurate and to draw attention to the need to add improved sources as they become available. These templates should not be used, however, to mark articles on subjects or persons in the news. If they were, hundreds of thousands of articles would have such a template, without any significant advantage ({{crossref|see also ]}}).

For health- and science-related breaking-news, Misplaced Pages has specific sourcing standards to prevent inaccuracies: see ''{{slink|Misplaced Pages:Identifying reliable sources (medicine)|Respect secondary sources}}'' and ''{{slink|Misplaced Pages:Reliable sources|Scholarship}}''. ''On the Media'' cautions consumers to be wary of news reports describing early science and medical breakthroughs,<ref name="OTMHealthBNCH">{{cite news |last1=Gladstone |first1=Brooke |title=Breaking News Consumer's Handbook: Health News Edition {{!}} On the Media |url=https://www.wnycstudios.org/podcasts/otm/segments/breaking-news-consumers-handbook-health-news-edition |publisher=WNYC|access-date=23 November 2022 |work=WNYC Studios |date=25 December 2015 |language=en}}</ref> especially those which do not interview independent experts (often solely based on unreliable ]), to prefer reports which avoid hyperbolic language and describe both benefits and costs of a new treatment (all treatments have trade-offs), to be wary of ] (exaggerating risks, symptoms, or anecdotes of a disease which leads to unnecessary worry, panic, or spending), and to be skeptical of treatments which are "{{tq|awaiting FDA approval}}" or {{xt|in pre-clinical testing}}" as more than 90% of all treatments fail during these stages and,<ref name="Sun202290percent">{{cite journal |last1=Sun |first1=Duxin |last2=Gao |first2=Wei |last3=Hu |first3=Hongxiang |last4=Zhou |first4=Simon |title=Why 90% of clinical drug development fails and how to improve it? |journal=Acta Pharmaceutica Sinica B |date=1 July 2022 |volume=12 |issue=7 |pages=3049–3062 |doi=10.1016/j.apsb.2022.02.002 |pmid=35865092 |pmc=9293739 |language=en |issn=2211-3835}}</ref> even if efficacious, may be 10 to 15 years or more from reaching the consumer market.<ref name="CancerResearchUK">{{cite web |title=How long a new drug takes to go through clinical trials |url=https://www.cancerresearchuk.org/about-cancer/find-a-clinical-trial/how-clinical-trials-are-planned-and-organised/how-long-it-takes-for-a-new-drug-to-go-through-clinical-trials |website=Cancer Research UK |access-date=23 November 2022 |language=en |date=21 October 2014}}</ref>

===Headlines===
{{Shortcut|WP:HEADLINES|WP:RSHEADLINES}}
News ]—including ]—are not a reliable source. If the information is supported by the body of the source, then cite it from the body. Headlines are written to grab readers' attention quickly and briefly; they may be overstated or lack context, and sometimes contain exaggerations or sensationalized claims with the intention of attracting readers to an otherwise reliable article. They are often written by copy editors instead of the researchers and journalists who wrote the articles.

== Deprecated sources ==
{{Shortcut|WP:RSDEPRECATED}}

{{main|Misplaced Pages:Deprecated sources}}
{{see also|Misplaced Pages:Reliable sources/Perennial sources|Misplaced Pages:Spam blacklist}}
A number of sources are deprecated on Misplaced Pages. That means they should not be used, unless there is a specific consensus to do so. Deprecation happens through a ], usually at the ]. It is reserved for sources that have a substantial history of fabrication or other serious factual accuracy issues (e.g. promoting unfounded ]), usually when there are large numbers of references to the source giving rise to concerns about the integrity of information in the encyclopedia.

A deprecated source should not be used to support factual claims. While there are exceptions for ], these are rarely appropriate outside articles on the source itself. In general articles, commentary on a deprecated source's opinion should be drawn from independent secondary sources. Including a claim or statement by a deprecated source that is not covered by reliable sources risks giving ] to a ].

Some sources are blacklisted, and can not be used at all. Blacklisting is generally reserved for sources which are added abusively, such as state-sponsored fake news sites with a history of addition by ]s. Specific blacklisted sources can be locally whitelisted; see ] for other details about blacklisting.


== See also == == See also ==
=== Templates ===
* ], essay
] lists many templates, including
* ], essay
* {{tl|notability}}
* ], essay
* {{tl|citation needed}}
* ]
* {{tl|unreliable source?}}
* ]

* ]
=== Policies and guidelines ===
{{div col}}
* ]
* ]
* ]
* ]
* ]
{{div col end}}

=== Information pages ===
{{div col}}
* ]
* ]
* ]
* ]
* ]
* ]
* ]
* ]
* ]
{{div col end}}

=== Locating reliable sources ===
{{also|Help:Find sources|Misplaced Pages:Advanced source searching}}
{{div col}}
* ]
* ], a list of frequently discussed sources
* ]
* ]
* ]
* ], a program for accessing paywalled resources free of charge
* ]
* ]
{{div col end}}

=== Essays ===
{{Main|Misplaced Pages:Essay directory#Verifiability and sources}}
{{div col}}
* ]
* ]
* ]
* ]
* ]
* ] (phrase doesn't mean what you think it does)
* ]
* ]
* ]
* ]
* ]
* ]
* ]
* ]
* ]
* ] (provides a ref-vetting method)
* ]
* ]
* ]
* ]
* ]
* ]
* ]
{{div col end}}

=== Other ===
{{div col}}
* ]
* ]
* ]
* ] – obtain community input on whether or not a source meets our reliability standards for a particular use
* ]
* ]
* ] – ''Signpost'' article
* ]
{{div col end}}

==Notes==
{{reflist|group=notes}}

==References==
{{Reflist}}


==External links== ==External links==
*, ''Reading, Writing, and Researching for History: A Guide for College Students'', Patrick Rael, 2004. * , ''Reading, Writing, and Researching for History: A Guide for College Students'', Patrick Rael, 2004. (Also )
*, ''Reading, Writing, and Researching for History: A Guide for College Students'', Patrick Rael, 2004. * , ''Reading, Writing, and Researching for History: A Guide for College Students'', Patrick Rael, 2004. (Also )
* , xkcd comic by ]
* , ]. How a troll used user-generated content to spread misinformation to TV.com, the IMDb, and Misplaced Pages.
* , ], '']''

{{Misplaced Pages policies and guidelines}}
{{Misplaced Pages referencing}}


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Latest revision as of 16:12, 1 December 2024

Content guideline for determining the reliability of a source "WP:RS", "WP:IRS", and "WP:RELIABILITY" redirect here. For other uses, see WP:RS (disambiguation), Misplaced Pages:Independent sources, and Misplaced Pages:WikiProject Reliability. For community input on the reliability of a source, see Misplaced Pages:Reliable sources/Noticeboard. For a list of frequently discussed sources, see Misplaced Pages:Reliable sources/Perennial sources. For the Misplaced Pages policy on reliable sources, see Misplaced Pages:Verifiability § Reliable sources.
Blue tickThis page documents an English Misplaced Pages content guideline.
Editors should generally follow it, though exceptions may apply. Substantive edits to this page should reflect consensus. When in doubt, discuss first on this guideline's talk page.
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This page in a nutshell: Misplaced Pages requires inline citations for any material challenged or likely to be challenged, and for all quotations. If you are new to editing and just need a general overview of how sources work, please visit the referencing for beginners help page.
Misplaced Pages guidelines
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Misplaced Pages articles should be based on reliable, published sources, making sure that all majority and significant minority views that have appeared in those sources are covered (see Misplaced Pages:Neutral point of view). If no reliable sources can be found on a topic, Misplaced Pages should not have an article on it.

This guideline discusses the reliability of various types of sources. The policy on sourcing is Misplaced Pages:Verifiability, which requires inline citations for any material challenged or likely to be challenged, and for all quotations. The verifiability policy is strictly applied to all material in the mainspace—articles, lists, and sections of articles—without exception, and in particular to biographies of living persons, which states:

Contentious material about living persons (or, in some cases, recently deceased) that is unsourced or poorly sourced—whether the material is negative, positive, neutral, or just questionable—must be removed immediately and without waiting for discussion.

In the event of a contradiction between this guideline and our policies regarding sourcing and attribution, the policies take priority and editors should seek to resolve the discrepancy. Other policies relevant to sourcing are Misplaced Pages:No original research and Misplaced Pages:Biographies of living persons. For questions about the reliability of particular sources, see Misplaced Pages:Reliable sources/Noticeboard.

Overview

Further information: Misplaced Pages:Neutral point of view § Good research Shortcut
Source reliability falls on a spectrum: No source is 'always reliable' or 'always unreliable' for everything. However, some sources provide stronger or weaker support for a given statement. Editors must use their judgment to draw the line between usable and inappropriate sources for each statement.

Articles should be based on reliable, independent, published sources with a reputation for fact-checking and accuracy. This means that we publish only the analysis, views, and opinions of reliable authors, and not those of Wikipedians, who have read and interpreted primary source material for themselves. The following examples cover only some of the possible types of reliable sources and source reliability issues, and are not intended to be exhaustive. Proper sourcing always depends on context; common sense and editorial judgment are an indispensable part of the process.

Definition of a source

Shortcut

A source is where the material comes from. For example, a source could be a book or a webpage. A source can be reliable or unreliable for the material it is meant to support. Some sources, such as unpublished texts and an editor's own personal experience, are prohibited.

When editors talk about sources that are being cited on Misplaced Pages, they might be referring to any one of these three concepts:

Any of the three can affect reliability. Reliable sources may be published materials with a reliable publication process, authors who are regarded as authoritative in relation to the subject, or both. These qualifications should be demonstrable to other people.

Definition of published

"WP:PUBLISHED" redirects here. Not to be confused with Misplaced Pages:Published (WP:PUBLISH). Shortcut

Published means, for Misplaced Pages's purposes, any source that was made available to the public in some form. The term is most commonly associated with text materials, either in traditional printed format or online; however, audio, video, and multimedia materials that have been recorded then broadcast, distributed, or archived by a reputable party may also meet the necessary criteria to be considered reliable sources. Like text, media must be produced by a reliable source and be properly cited. Additionally, an archived copy of the media must exist. It is convenient, but by no means necessary, for the archived copy to be accessible via the Internet.

Context matters

Shortcuts

The reliability of a source depends on context. Each source must be carefully weighed to judge whether it is reliable for the statement being made in the Misplaced Pages article and is an appropriate source for that content.

In general, the more people engaged in checking facts, analyzing legal issues, and scrutinizing the writing, the more reliable the publication. Sources should directly support the information as it is presented in the Misplaced Pages article.

Information provided in passing by an otherwise reliable source or information that is not related to the principal topics of the publication may not be reliable; editors should cite sources focused on the topic at hand where possible. For example, a publisher's web site is likely to be reliable for an author's identity, date of publication, etc., but not necessarily for a critical, artistic, or commercial evaluation of the work (see § Reliability in specific contexts, below).

Age matters

Shortcuts

Especially in scientific and academic fields, older sources may be inaccurate because new information has been brought to light, new theories proposed, or vocabulary changed. In areas like politics or fashion, laws or trends may make older claims incorrect. Be sure to check that older sources have not been superseded, especially if it is likely that new discoveries or developments have occurred in the last few years. In particular, newer sources are generally preferred in medicine.

Sometimes sources are too new to use, such as with breaking news (where later reports might be more accurate), and primary sources which purport to debunk a long-standing consensus or introduce a new discovery (in which case awaiting studies that attempt to replicate the discovery might be a good idea, or reviews that validate the methods used to make the discovery).

Similarly for breaking news, a contemporary secondary news source can quickly become a historical primary source. Articles of recent current events must be periodically updated with new secondary sources.

Sources of any age may be prone to recentism, and this needs to be balanced out by careful editing.

Usage by other sources

Shortcuts

How accepted and high-quality reliable sources use a given source provides evidence, positive or negative, for its reliability and reputation. The more widespread and consistent this use is, the stronger the evidence. For example, widespread citation without comment for facts is evidence of a source's reputation and reliability for similar facts, whereas widespread doubts about reliability weigh against it. If outside citation is the main indicator of reliability, particular care should be taken to adhere to other guidelines and policies, and to not unduly represent contentious or minority claims. The goal is to reflect established views of a topic as far as we can determine them.

Some types of sources

Shortcut Further information: Misplaced Pages:Verifiability § Reliable sources, and Misplaced Pages:Verifiability § Verifiability does not guarantee inclusion

Many Misplaced Pages articles rely on scholarly material. When available, academic and peer-reviewed publications, scholarly monographs, and textbooks are usually the most reliable sources. However, some scholarly material may be outdated, in competition with alternative theories, controversial within the relevant field, or largely ignored by the mainstream academic discourse because of lack of citations. Try to cite current scholarly consensus when available, recognizing that this is often absent. Reliable non-academic sources may also be used in articles about scholarly issues, particularly material from high-quality mainstream publications. Deciding which sources are appropriate depends on context. Material should be attributed in-text where sources disagree.

Scholarship

Shortcut
  • Prefer secondary sources – Articles should rely on secondary sources whenever possible. For example, a paper reviewing existing research, a review article, monograph, or textbook is often better than a primary research paper. When relying on primary sources, extreme caution is advised. Wikipedians should never interpret the content of primary sources for themselves (see Misplaced Pages:No original research and Misplaced Pages:Neutral point of view).
  • Reliable scholarship – Material such as an article, book, monograph, or research paper that has been vetted by the scholarly community is regarded as reliable, where the material has been published in reputable peer-reviewed sources or by well-regarded academic presses.
  • Dissertations – Completed dissertations or theses written as part of the requirements for a doctorate, and which are publicly available (most via interlibrary loan or from ProQuest), can be used but care should be exercised, as they are often, in part, primary sources. Some of them will have gone through a process of academic peer reviewing, of varying levels of rigor, but some will not. If possible, use theses that have been cited in the literature; supervised by recognized specialists in the field; or reviewed by independent parties. Dissertations in progress have not been vetted and are not regarded as published and are thus not reliable sources as a rule. Some theses are later published in the form of scholarly monographs or peer reviewed articles, and, if available, these are usually preferable to the original thesis as sources. Masters dissertations and theses are considered reliable only if they can be shown to have had significant scholarly influence.
  • Citation counts – One may be able to confirm that discussion of the source has entered mainstream academic discourse by checking what scholarly citations it has received in citation indexes or lists such as DOAJ. Works published in journals not included in appropriate databases, especially in fields well covered by them, might be isolated from mainstream academic discourse, though whether it is appropriate to use will depend on the context. The number of citations may be misleading if an author cites themselves often.
  • Isolated studies – Isolated studies are usually considered tentative and may change in the light of further academic research. If the isolated study is a primary source, it should generally not be used if there are secondary sources that cover the same content. The reliability of a single study depends on the field. Avoid undue weight when using single studies in such fields. Studies relating to complex and abstruse fields, such as medicine, are less definitive and should be avoided. Secondary sources, such as meta-analyses, textbooks, and scholarly review articles are preferred when available, so as to provide proper context.
  • POV and peer review in journals – Care should be taken with journals that exist mainly to promote a particular point of view. A claim of peer review is not an indication that the journal is respected, or that any meaningful peer review occurs. Journals that are not peer reviewed by the wider academic community should not be considered reliable, except to show the views of the groups represented by those journals.
  • Predatory journalsPredatory journals are of very low quality and have only token peer-review, if any. These journals publish whatever is submitted if the author is willing to pay a fee. Some go so far as to mimic the names of established journals (Journal hijacking). The lack of reliable peer review implies that articles in such journals should at best be treated similarly to self-published sources. If you are unsure about the quality of a journal, check that the editorial board is based in a respected accredited university, and that it is included in the relevant high-quality citation index—be wary of indexes that merely list almost all publications, and do not vet the journals they list. (See also Misplaced Pages:Identifying reliable sources (medicine) § Predatory journals.)
  • ShortcutsPreprintsPreprints, such as those available on repositories like arXiv, medRxiv, bioRxiv, or Zenodo are not reliable sources. Research that has not been peer-reviewed is akin to a blog, as anybody can post it online. Their use is generally discouraged, unless they meet the criteria for acceptable use of self-published sources, and will always fail higher sourcing requirements like WP:MEDRS. However, links to such repositories can be used as open-access links for papers which have been subsequently published in acceptable literature.

News organizations

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News sources often contain both factual content and opinion content. News reporting from well-established news outlets is generally considered to be reliable for statements of fact (though even the most reputable reporting sometimes contains errors). News reporting from less-established outlets is generally considered less reliable for statements of fact. Most newspapers also reprint items from news agencies such as Reuters, Interfax, Agence France-Presse, United Press International or the Associated Press, which are responsible for accuracy. The agency should be cited in addition to the newspaper that reprinted it.

  • Scholarly sources and high-quality non-scholarly sources are generally better than news reports for academic topics (see § Scholarship, above). Press releases from organizations or journals are often used by newspapers with minimal change; such sources are churnalism and should not be treated differently than the underlying press release. Occasionally, some newspapers still have specialist reporters who are citable by name. (For topics relating to health or medicine, see § Medical claims, below.)
  • Otherwise reliable news sources—for example, the website of a major news organization—that publish in a blog-style format for some or all of their content may be as reliable as if published in standard news article format (See also Misplaced Pages:Verifiability § Newspaper and magazine blogs).
  • Signals that a news organization engages in fact-checking and has a reputation for accuracy are the publication of corrections and disclosures of conflicts of interest.
  • Human interest reporting is generally not as reliable as news reporting, and may not be subject to the same rigorous standards of fact-checking and accuracy (see Junk food news).
  • The reporting of rumors has a limited encyclopedic value, although in some instances verifiable information about rumors may be appropriate (i.e. if the rumors themselves are noteworthy, regardless of whether or not they are true). Misplaced Pages is not the place for passing along gossip and rumors.
  • Some news organizations have used Misplaced Pages articles as a source for their work. Editors should therefore beware of circular sourcing.
  • Whether a specific news story is reliable for a fact or statement should be examined on a case-by-case basis.
  • Multiple sources should not be asserted for any wire service article. Such sources are essentially a single source.
  • Unless reported by a reliable source, leaks should not normally be used or cited directly in articles.

Editorial and opinion commentary

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Editorial commentary, analysis and opinion pieces, whether written by the editors of the publication (editorials) or outside authors (invited op-eds and letters to the editor from notable figures) are reliable primary sources for statements attributed to that editor or author, but are rarely reliable for statements of fact (see also § Statements of opinion, below).

  • When taking information from opinion content, the identity of the author may help determine reliability. The opinions of specialists and recognized experts are more likely to be reliable and to reflect a significant viewpoint. If the statement is not authoritative, attribute the opinion to the author in the text of the article and do not represent it as fact. Reviews for books, movies, art, etc. can be opinion, summary, or scholarly pieces.
  • Some news organizations may not publish their editorial policies.

News aggregators

Some websites function partly or entirely as aggregators, reprinting items from websites of news agencies, blogs, websites, or even Misplaced Pages itself. These may constitute a curated feed or an AI-generated feed. Examples include the main pages of MSN and Yahoo News. As with newspaper reprints, the original content creator is responsible for accuracy and reliability should be judged based on the original source. Direct links to the original source should be preferred over the aggregator's link.

Vendor and e-commerce sources

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Although the content guidelines for external links prohibit linking to "Individual web pages that primarily exist to sell products or services", inline citations may be allowed to e-commerce pages such as that of a book on a bookseller's page or an album on its streaming-music page, in order to verify such things as titles and running times. Journalistic and academic sources are preferable, however, and e-commerce links should be replaced with reliable non-commercial sources if available.

Rankings proposed by vendors (such as bestseller lists at Amazon) usually have at least one of the following problems:

  1. It may be impossible to provide a stable source for the alleged ranking.
  2. When only self-published by the vendor, i.e. no reliable independent source confirming the ranking as being relevant, the ranking would usually carry insufficient weight to be mentioned in any article.

For such reasons, such rankings are usually avoided as Misplaced Pages content.

Biased or opinionated sources

Shortcuts See also: Misplaced Pages:Neutral point of view § Bias in sources

Misplaced Pages articles are required to present a neutral point of view. However, reliable sources are not required to be neutral, unbiased, or objective. Sometimes non-neutral sources are the best possible sources for supporting information about the different viewpoints held on a subject.

Common sources of bias include political, financial, religious, philosophical, or other beliefs. Although a source may be biased, it may be reliable in the specific context. When dealing with a potentially biased source, editors should consider whether the source meets the normal requirements for reliable sources, such as editorial control, a reputation for fact-checking, and the level of independence from the topic the source is covering. Bias may make in-text attribution appropriate, as in "The feminist Betty Friedan wrote that..."; "According to the Marxist economist Harry Magdoff..."; or "The conservative Republican presidential candidate Barry Goldwater believed that...".

Questionable and self-published sources

Main page: Misplaced Pages:Verifiability § Reliable sources

Questionable sources

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Questionable sources are those with a poor reputation for checking the facts or with no editorial oversight. Such sources include websites and publications expressing views that are widely acknowledged as extremist, that are promotional in nature, or that rely heavily on rumors and personal opinions. Questionable sources are generally unsuitable for citing contentious claims about third parties, which includes claims against institutions, persons living or dead, as well as more ill-defined entities. The proper uses of a questionable source are very limited.

Beware of sources that sound reliable but do not have the reputation for fact-checking and accuracy that this guideline requires. The Journal of 100% Reliable Factual Information might have a reputation for "predatory" behavior, which includes questionable business practices and/or peer-review processes that raise concerns about the reliability of their journal articles.

Sponsored content

Shortcut See also: Misplaced Pages:Conflict of interest § Covert advertising

Sponsored content is a paid advertisement that is formatted to look like an article or other piece of typical content for that outlet. The content may be directly controlled by the sponsor, or the advertiser may pay an author to create the content (e.g., influencer marketing). Advertisements can be cited, but they are non-independent and should be treated as self-published and primary sources in articles. Reliable publications clearly indicate sponsored articles in the byline or with a disclaimer at the top of the article. Sources that do not clearly distinguish staff-written articles from sponsored content are also questionable.

Symposia and supplements to academic journals are often (but far from always) unacceptable sources. They are commonly sponsored by industry groups with a financial interest in the outcome of the research reported. They may lack independent editorial oversight and peer review, with no supervision of content by the parent journal. Such articles do not share the reliability of their parent journal, being essentially paid ads disguised as academic articles. Such supplements, and those that do not clearly declare their editorial policy and conflicts of interest, should not be cited.

Indications that an article was published in a supplement may be fairly subtle; for instance, a letter "S" added to a page number, or "Suppl." in a reference. However, note that merely being published in a supplement is not prima facie evidence of being published in a sponsored supplement. Many, if not most, supplements are perfectly legitimate sources, such as the Astronomy & Astrophysics Supplement Series, Nuclear Physics B: Proceedings Supplements, Supplement to the London Gazette, or The Times Higher Education Supplement. A sponsored supplement also does not necessarily involve a COI; for instance, public health agencies may also sponsor supplements. However, groups that do have a COI may hide behind layers of front organizations with innocuous names, so the ultimate funding sources should always be ascertained.

Self-published sources (online and paper)

Shortcuts Main page: Misplaced Pages:Verifiability § Self-published sources

Anyone can create a personal web page or publish their own book and claim to be an expert in a certain field. For that reason, self-published sources are largely not acceptable. Self-published books and newsletters, personal pages on social networking sites, tweets, and posts on Internet forums are all examples of self-published media. Self-published expert sources may be considered reliable when produced by an established expert on the subject matter, whose work in the relevant field has previously been published by reliable, independent publications. Never use self-published sources as third-party sources about living people, even if the author is an expert, well-known professional researcher, or writer.

User-generated content

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Content from websites whose content is largely user-generated is generally unacceptable. Sites with user-generated content include personal websites, personal and group blogs (excluding newspaper and magazine blogs), content farms, Internet forums, social media sites, fansites, video and image hosting services, most wikis and other collaboratively created websites.

Examples of unacceptable user-generated sources are Ancestry.com, Discogs, Facebook, Famous Birthdays, Fandom, Find a Grave, Goodreads, IMDb, Instagram, Know Your Meme, Reddit, Snapchat, TikTok, Tumblr, TV Tropes, Twitter, WhoSampled, and Misplaced Pages (self referencing). For official accounts from celebrities and organizations on social media, see the section about self-published sources below.

Although review aggregators (such as Rotten Tomatoes and Metacritic) may be reliable when summarizing experts, the ratings and opinions of their users (including the reported rating averages) are not.

In particular, a wikilink is not a reliable source.

Self-published and questionable sources as sources on themselves

Shortcut See also: Misplaced Pages:Verifiability § Self-published or questionable sources as sources on themselves
It has been suggested that this section be merged into Misplaced Pages:Verifiability#Self-published or questionable sources as sources on themselves. (Discuss) Proposed since December 2023.

Self-published or questionable sources may be used as sources of information about themselves, especially in articles about themselves, without the requirement that they be published experts in the field, so long as the following criteria are met:

  1. The material is neither unduly self-serving nor an exceptional claim.
  2. It does not involve claims about third parties (such as people, organizations, or other entities).
  3. It does not involve claims about events not directly related to the subject.
  4. There is no reasonable doubt as to its authenticity.
  5. The Misplaced Pages article is not based primarily on such sources.

These requirements also apply to pages from social networking websites such as Twitter, Tumblr, and Facebook. Use of self-sourced material should be de minimis; the great majority of any article must be drawn from independent sources.

Spurious sources produced by machine learning

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In recent years, machine learning (ML, AI) has become a common way to generate and publish material. It may not be known or detectable that ML was used. While ML generation in itself does not necessarily disqualify a source that is properly checked by the person using it, ML has a tendency to create or "hallucinate" imaginary information, "supported" by citations that look as if they are from respectable sources but do not exist. In one case, a lawyer used ChatGPT to generate and file a legal brief that he did not check; the judge upon reviewing the case stated, "six of the submitted cases appear to be bogus judicial decisions with bogus quotes and bogus internal citations", although ChatGPT had assured the author that they were real and could "be found in reputable legal databases such as LexisNexis and Westlaw". Citations have been published to newspaper articles that do not exist, attributed to named reporters. Such spurious material may be generated unintentionally by writers—reporters, scientists, medical researchers, lawyers, ...—using chatbots to help them to produce reports, or maliciously to generate "fake news".

Reliability in specific contexts

Biographies of living persons

Main page: Misplaced Pages:Biographies of living persons § Reliable sources

Editors must take particular care when writing biographical material about living persons. Contentious material about a living person that is unsourced or poorly sourced should be removed immediately; do not move it to the talk page. This applies to any material related to living persons on any page in any namespace, not just article space.

Primary, secondary, and tertiary sources

Shortcuts Main page: Misplaced Pages:No original research § Primary, secondary and tertiary sources

Misplaced Pages articles should be based mainly on reliable secondary sources, i.e., a document or recording that relates to or discusses information originally presented elsewhere.

Reputable tertiary sources, such as introductory-level university textbooks, almanacs, and encyclopedias, may be cited. However, although Misplaced Pages articles are tertiary sources, Misplaced Pages employs no systematic mechanism for fact-checking or accuracy. Thus, Misplaced Pages articles (and Misplaced Pages mirrors) in themselves are not reliable sources for any purpose (except as sources on themselves per WP:SELFSOURCE).

Primary sources are often difficult to use appropriately. Although they can be both reliable and useful in certain situations, they must be used with caution in order to avoid original research. Although specific facts may be taken from primary sources, secondary sources that present the same material are preferred. Large blocks of material based purely on primary sources should be avoided. All interpretive claims, analyses, or synthetic claims about primary sources must be referenced to a secondary source, rather than original analysis of the primary-source material by Misplaced Pages editors.

When editing articles in which the use of primary sources is a concern, in-line templates, such as {{primary source-inline}} and {{better source}}, or article templates, such as {{primary sources}} and {{refimprove science}}, may be used to mark areas of concern.

Medical claims

Shortcut Main page: Misplaced Pages:Identifying reliable sources (medicine)

Ideal sources for biomedical information include general or systematic reviews in reliable, independent, published sources, such as reputable medical journals, widely recognised standard textbooks written by experts in a field, or medical guidelines and position statements from nationally or internationally reputable expert bodies. It is vital that the biomedical information in all types of articles be based on reliable, independent, published sources and accurately reflect current medical knowledge.

Fringe theories

See also: Misplaced Pages:Fringe theories § Parity of sources

Inclusion and exclusion of content related to fringe theories and criticism of fringe theories may be done by means of a rough parity of sources. If an article is written about a well-known topic about which many peer-reviewed articles are written, it should not include fringe theories that may seem relevant but are only sourced to obscure texts that lack peer review. Parity of sources may mean that certain fringe theories are only reliably and verifiably reported on, or criticized, in alternative venues from those that are typically considered reliable sources for scientific topics on Misplaced Pages.

In an article on a fringe topic, if a notable fringe theory is primarily described by amateurs and self-published texts, verifiable and reliable criticism of the fringe theory need not be published in a peer-reviewed journal. For example, the Moon landing conspiracy theories article may include material from reliable websites, movies, television specials, and books that are not peer-reviewed. By parity of sources, critiques of that material can likewise be gleaned from reliable websites and books that are not peer-reviewed. Of course, for any viewpoint described in an article, only reliable sources should be used; Misplaced Pages's verifiability and biographies of living persons policies are not suspended simply because the topic is a fringe theory.

Quotations

Shortcut Further information: Misplaced Pages:Manual of Style § Quotations

The accuracy of quoted material is paramount and the accuracy of quotations from living persons is especially sensitive. To ensure accuracy, the text of quoted material is best taken from (and cited to) the original source being quoted. If this is not possible, then the text may be taken from a reliable secondary source (ideally one that includes a citation to the original). No matter where you take the quoted text from, it is important to make clear the actual source of the text, as it appears in the article.

Partisan secondary sources should be viewed with suspicion as they may misquote or quote out of context. In such cases, look for neutral corroboration from another source.

Any analysis or interpretation of the quoted material, however, should rely on a secondary source (see Misplaced Pages:No original research).

Academic consensus

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A statement that all or most scientists or scholars hold a certain view requires reliable sourcing that directly says that all or most scientists or scholars hold that view. Otherwise, individual opinions should be identified as those of particular, named sources. Editors should avoid original research especially with regard to making blanket statements based on novel syntheses of disparate material. Stated simply, any statement in Misplaced Pages that academic consensus exists on a topic must be sourced rather than being based on the opinion or assessment of editors. Review articles, especially those printed in academic review journals that survey the literature, can help clarify academic consensus.

Statements of opinion

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Some sources may be considered reliable for statements as to their author's opinion, but not for statements asserted as fact. For example, an inline qualifier might say " says....". A prime example of this is opinion pieces in mainstream newspapers. When using them, it is best to clearly attribute the opinions in the text to the author and make it clear to the readers that they are reading an opinion (see also § Editorial and opinion commentary, above).

There is an important exception to sourcing statements of fact or opinion: Never use self-published books, zines, websites, webforums, blogs and tweets as a source for material about a living person, unless written or published by the subject of the biographical material. "Self-published blogs" in this context refers to personal and group blogs; see Misplaced Pages:Biographies of living persons § Reliable sources and Misplaced Pages:Biographies of living persons § Using the subject as a self-published source.

The exception for statements ABOUTSELF is covered at Misplaced Pages:Verifiability § Self-published or questionable sources as sources on themselves.

Breaking news

Shortcut Further information: Misplaced Pages:Biographies of living persons § Avoid gossip and feedback loops See also: Misplaced Pages:Notability (events) § Breaking news

Breaking-news reports often contain serious inaccuracies. As an electronic publication, Misplaced Pages can and should be up to date, but Misplaced Pages is not a newspaper and it does not need to go into all details of a current event in real time. It is better to wait a day or two after an event before adding details to the encyclopedia, than to help spread potentially false rumors. This gives journalists time to collect more information and verify claims, and for investigative authorities to make official announcements. The On the Media Breaking News Consumer's Handbook contains several suggestions to avoid spreading unreliable and false information. These include: distrust anonymous sources, unconfirmed reports, and reports attributed to other news media; seek multiple independent sources which independently verify; seek verified eyewitness reports; and be wary of potential hoaxes. With mass shootings, remain skeptical of early reports of additional attackers, coordinated plans, and bomb threats.

When editing a current-event article, keep in mind the tendency towards recentism bias. Claims sourced to initial news reports should be immediately replaced with better-researched and verified sources as soon as such articles are published, especially if original reports contained inaccuracies. All breaking news stories, without exception, are primary sources, and must be treated with caution: see Misplaced Pages:No original research § Primary, secondary and tertiary sources, Misplaced Pages:Identifying and using primary sources § Examples of news reports as primary sources.

The {{current}}, {{recent death}}, or another current-event-related template may be added to the top of articles related to a breaking-news event to alert readers that some information in the article may be inaccurate and to draw attention to the need to add improved sources as they become available. These templates should not be used, however, to mark articles on subjects or persons in the news. If they were, hundreds of thousands of articles would have such a template, without any significant advantage (see also Misplaced Pages:No disclaimers in articles).

For health- and science-related breaking-news, Misplaced Pages has specific sourcing standards to prevent inaccuracies: see Misplaced Pages:Identifying reliable sources (medicine) § Respect secondary sources and Misplaced Pages:Reliable sources § Scholarship. On the Media cautions consumers to be wary of news reports describing early science and medical breakthroughs, especially those which do not interview independent experts (often solely based on unreliable press releases), to prefer reports which avoid hyperbolic language and describe both benefits and costs of a new treatment (all treatments have trade-offs), to be wary of disease mongering (exaggerating risks, symptoms, or anecdotes of a disease which leads to unnecessary worry, panic, or spending), and to be skeptical of treatments which are "awaiting FDA approval" or in pre-clinical testing" as more than 90% of all treatments fail during these stages and, even if efficacious, may be 10 to 15 years or more from reaching the consumer market.

Headlines

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News headlines—including subheadlines—are not a reliable source. If the information is supported by the body of the source, then cite it from the body. Headlines are written to grab readers' attention quickly and briefly; they may be overstated or lack context, and sometimes contain exaggerations or sensationalized claims with the intention of attracting readers to an otherwise reliable article. They are often written by copy editors instead of the researchers and journalists who wrote the articles.

Deprecated sources

Shortcut Main page: Misplaced Pages:Deprecated sources See also: Misplaced Pages:Reliable sources/Perennial sources and Misplaced Pages:Spam blacklist

A number of sources are deprecated on Misplaced Pages. That means they should not be used, unless there is a specific consensus to do so. Deprecation happens through a request for comment, usually at the reliable sources noticeboard. It is reserved for sources that have a substantial history of fabrication or other serious factual accuracy issues (e.g. promoting unfounded conspiracy theories), usually when there are large numbers of references to the source giving rise to concerns about the integrity of information in the encyclopedia.

A deprecated source should not be used to support factual claims. While there are exceptions for discussion of the source's own view on something, these are rarely appropriate outside articles on the source itself. In general articles, commentary on a deprecated source's opinion should be drawn from independent secondary sources. Including a claim or statement by a deprecated source that is not covered by reliable sources risks giving undue weight to a fringe view.

Some sources are blacklisted, and can not be used at all. Blacklisting is generally reserved for sources which are added abusively, such as state-sponsored fake news sites with a history of addition by troll farms. Specific blacklisted sources can be locally whitelisted; see Misplaced Pages:Blacklist for other details about blacklisting.

See also

Templates

Misplaced Pages:Template messages/Cleanup/Verifiability and sources lists many templates, including

Policies and guidelines

Information pages

Locating reliable sources

See also: Help:Find sources and Misplaced Pages:Advanced source searching

Essays

Main page: Misplaced Pages:Essay directory § Verifiability and sources

Other

Notes

  1. Examples include The Creation Research Society Quarterly and Journal of Frontier Science (the latter uses blog comments as peer review). Archived 2019-04-20 at the Wayback Machine).
  2. Many submissions to these predatory journals will be by scholars that a) cannot get their theories published in legitimate journals, b) were looking to quickly publish something to boost their academic resumes, or c) were honestly looking for a legitimate peer-review process to validate new ideas, but were denied the feedback by fraudulent publishers.
  3. A variety of these incidents have been documented by Private Eye and others and discussed on Misplaced Pages, where incorrect details from articles added as vandalism or otherwise have appeared in newspapers
  4. Please keep in mind that any exceptional claim would require exceptional sources, and this is policy.

References

  1. Beall, Jeffrey (1 January 2015). "Criteria for Determining Predatory Open-Access Publishers" (PDF) (3rd ed.). Scholarly Open Access. Archived from the original on 5 January 2017.
  2. Kolata, Gina (April 7, 2013). "Scientific Articles Accepted (Personal Checks, Too)". The New York Times. Archived from the original on April 11, 2013. Retrieved April 11, 2013.
  3. Butler, Declan (March 28, 2013). "Sham journals scam authors: Con artists are stealing the identities of real journals to cheat scientists out of publishing fees". Nature. 495 (7442): 421–422. doi:10.1038/495421a. PMID 23538804. S2CID 242583. Archived from the original on April 13, 2013. Retrieved April 11, 2013.
  4. Bohannon, John (4 October 2013). "Who's afraid of peer review?". Science. 342 (6154): 60–65. doi:10.1126/science.342.6154.60. PMID 24092725.
  5. Kolata, Gina (30 October 2017). "Many Academics Are Eager to Publish in Worthless Journals". The New York Times. Archived from the original on 8 November 2017. Retrieved 2 November 2017.
  6. Miller, Laura (October 16, 2011). "'Sybil Exposed': Memory, lies and therapy". Salon. Salon Media Group. Archived from the original on October 16, 2011. Retrieved October 17, 2011. Debbie Nathan also documents a connection between Schreiber and Terry Morris, a 'pioneer' of this genre who freely admitted to taking 'considerable license with the facts that are given to me.'
  7. "Book reviews". Scholarly definition document. Princeton. 2011. Archived from the original on November 5, 2011. Retrieved September 22, 2011.
  8. "Book reviews". Scholarly definition document. Virginia Polytechnic Institute and State University. 2011. Archived from the original on September 10, 2011. Retrieved September 22, 2011.
  9. Malone Kircher, Madison (November 15, 2016). "Fake Facebook news sites to avoid". New York Magazine. Archived from the original on November 16, 2016. Retrieved November 15, 2016.
  10. An example is the Daily Mail, which is broadly considered a questionable and prohibited source, per this RfC.
  11. Beall, Jeffrey (25 February 2015). "'Predatory' Open-Access Scholarly Publishers" (PDF). The Charleston Advisor. Archived (PDF) from the original on 4 March 2016. Retrieved 7 January 2016.
  12. Beall, Jeffrey. "Potential, possible, or probable predatory scholarly open-access publishers". Archived from the original on 11 January 2017.
  13. Fees, F. (2016), Recommendations for the conduct, reporting, editing, and publication of scholarly work in medical journals (PDF), archived (PDF) from the original on 2014-03-05, retrieved 2019-01-12 Conflicts-of-interest section Archived 2018-12-30 at the Wayback Machine, .
  14. Rochon, PA; Gurwitz, JH; Cheung, CM; Hayes, JA; Chalmers, TC (13 July 1994). "Evaluating the quality of articles published in journal supplements compared with the quality of those published in the parent journal". JAMA. 272 (2): 108–13. doi:10.1001/jama.1994.03520020034009. PMID 8015117.
  15. Nestle, Marion (2 January 2007). "Food company sponsorship of nutrition research and professional activities: a conflict of interest?" (PDF). Public Health Nutrition. 4 (5): 1015–1022. doi:10.1079/PHN2001253. PMID 11784415. S2CID 17781732. Archived (PDF) from the original on 17 November 2018. Retrieved 12 January 2019.
  16. See this discussion of how to identify shill academic articles cited in Misplaced Pages.
  17. Moran, Lyle (30 May 2023). "Lawyer cites fake cases generated by ChatGPT in legal brief". Legal Dive.
  18. Tangermann, Victor (6 April 2023). "Newspaper Alarmed When ChatGPT References Article It Never Published". Futurism.
  19. "The Breaking News Consumer's Handbook | On the Media". WNYC. Archived from the original on 2019-02-28. Retrieved 2019-03-14.
  20. Gladstone, Brooke (25 December 2015). "Breaking News Consumer's Handbook: Health News Edition | On the Media". WNYC Studios. WNYC. Retrieved 23 November 2022.
  21. Sun, Duxin; Gao, Wei; Hu, Hongxiang; Zhou, Simon (1 July 2022). "Why 90% of clinical drug development fails and how to improve it?". Acta Pharmaceutica Sinica B. 12 (7): 3049–3062. doi:10.1016/j.apsb.2022.02.002. ISSN 2211-3835. PMC 9293739. PMID 35865092.
  22. "How long a new drug takes to go through clinical trials". Cancer Research UK. 21 October 2014. Retrieved 23 November 2022.

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