Editing Exit poll

{{Short description|Poll of voters taken after they exit polling stations}}
{{About|polling by media|election fraud prevention|Election verification exit poll}}
{{Redirect|Early return|control flow in a computer program|Return_statement#Multiple_return_statements}}
{{Use dmy dates|date=May 2015}}
{{Elections}}

An '''election exit poll''' is a [[Survey (human research)|poll]] of voters taken immediately after they have exited the [[polling place|polling stations]]. A similar poll conducted before actual voters have voted is called an [[entrance poll]]. Pollsters – usually private companies working for [[newspaper]]s or [[broadcasting|broadcasters]] – conduct exit polls to gain an early indication as to how an election has turned out, as in many elections the actual result may take many hours to count.

==History==
There are different views on who invented the exit poll. [[Marcel van Dam]], Dutch sociologist and former politician, says he was the inventor, by being the first to implement one during the Dutch legislative elections on 15 February 1967.<ref>Van Dam, Marcel P. A. and Jan Beishuizen (1967) "''Kijk op de kiezer''". Amsterdam: ''Het Parool''</ref> Other sources say [[Warren Mitofsky]], an American pollster, was the first. For [[CBS News]], he devised an exit poll in the Kentucky gubernatorial election in November that same year.<ref>[https://www.nytimes.com/2006/09/04/obituaries/04mitofsky.html Warren J. Mitofsky, 71, Innovator Who Devised Exit Poll, Dies], ''The New York Times'', 4 September 2006</ref><ref>David W. Moore, Senior Gallup Poll Editor, “New Exit Poll Consortium Vindication for Exit Poll Inventor,” Gallup News Service, October 11, 2003</ref> Notwithstanding this, the mention of the first exit polls date back to the 1940s when such a poll was held in Denver, Colorado.<ref>Frankovic, K. A (1992) ''Technology and the Changing Landscape of Media Polls'' and [https://books.google.com/books?id=57mHzMmqUt4C&dq=Elections+and+Exit+Polling&pg=PA66 Fritz J. Scheuren, Wendy Alvey (2008) ''Elections and Exit Polling'' p. 5]</ref>{{failed verification|date=August 2017}}

==Purpose==
{{unreferenced section|date=February 2023}}
Exit polls are also used to collect [[demographics|demographic]] data about voters and to find out why they voted as they did. Since actual votes are cast anonymously, polling is the only way of collecting this information.

Exit polls have historically and throughout the world been used as a [[Election verification exit poll|check against, and rough indicator]] of, the degree of [[election fraud]]. Some examples of this include the [[2004 Venezuelan recall referendum]], and the [[2004 Ukrainian presidential election]].

They are used to command a [[mandate (politics)|mandate]] as well as to determine whether or not a particular [[political campaign]] was successful or not.

==Methods==

The distribution of votes is not even across different polling stations and also varies at different times of day. As a result, a single exit poll may give an imperfect picture of the national vote. Instead, some exit polls  calculate [[swing (politics)|swing]] and [[Voter turnout|turnout]]. Pollsters return to the same polling stations at the same times at each election, and by comparing the results with previous exit polls they can calculate how the distribution of votes has changed in that constituency. This swing is then applied to other similar constituencies, allowing an estimate of how national voting patterns have changed. The polling locations are chosen to cover the entire gamut of society and where possible, to include especially critical [[marginal seat]]s.<ref name="FT explanation">{{cite news|url=http://www.ft.com/intl/cms/s/0/57ce9e5a-271d-11e6-8ba3-cdd781d02d89.html#axzz4B4x3xNyW|archive-url=https://ghostarchive.org/archive/20221211141257/https://www.ft.com/content/57ce9e5a-271d-11e6-8ba3-cdd781d02d89#axzz4B4x3xNyW|archive-date=11 December 2022|url-access=subscription|url-status=live|title=The hedge funds' EU referendum exit polls are not to be trusted|author=Delphine Strauss|date=31 May 2016|access-date=9 June 2016|newspaper=Financial Times}}</ref><ref name="UK Polling Report">{{cite web|url=http://ukpollingreport.co.uk/blog/archives/9697|title=Exit Polls on the EU Referendum|website=UK Polling Report|author=Anthony J Wells|date=1 June 2016|access-date=9 June 2016}}</ref><ref name="Warwick">{{cite web|url=http://www2.warwick.ac.uk/fac/sci/statistics/staff/academic-research/firth/exit-poll-explainer/#faq7|title=Exit polling explained |website=Department of Statistics, University of Warwick|date=May 2010|access-date=10 June 2016|author=David Firth}}</ref> Data is presented in one of three ways, either as a [[table (information)|table]], graph or written interpretation.<ref name="exposur">{{cite book|url=https://play.google.com/store/books/details?id=u112AwAAQBAJ|title=Exit Polls: Surveying the American Electorate, 1972-2010|last=Best|first=Samuel J.|publisher=CQ Press|year=2012|isbn=9781452234403|page=1,2|author2=Brian S. Krueger|access-date=28 November 2016}}</ref>

The US exit polls have long been conducted by Edison Research for the [[National Election Pool]] of media organizations, interviewing a sample of voters as they leave a polling place. These pollsters choose precincts whose mix of voters is representative of the broader area. These voters may not be typical. For example, minority voters in a mixed precinct may vote at different rates and for different candidates than minority voters in a mostly minority precinct.<ref name="poynter">{{Cite news |last=Ahebee |first=Sojourner |date=2020-12-18 |title=Why race-specific voter turnout data is a challenge to collect |language=en-US |work=Poynter |url=https://www.poynter.org/reporting-editing/2020/why-race-specific-voter-turnout-data-is-a-challenge-to-collect/ |access-date=2021-11-24}}</ref> The [[Associated Press]] since 2018 has switched to [[phone poll]]ing, which does not need to be grouped by precinct. They start calling a random sample of voters until they vote, to cover [[mailed ballot]]s, [[early voting]], and election-day voting.<ref name="poynter"/>

==Problems==
Like all opinion polls, exit polls by nature do include a [[margin of error]]. A famous example of exit poll error occurred in the [[1992 United Kingdom general election|1992 UK General Election]] when two exit polls predicted a [[hung parliament]]. The actual vote revealed that [[Conservative Party (UK)|Conservative Party]] government under [[John Major]] held their position, though with a significantly reduced majority. Investigations into this failure identified a number of causes including differential response rates (the [[Shy Tory Factor]]), the use of inadequate demographic data and poor choice of sampling points.<ref>{{Citation |author=[[Market Research Society]]|publisher=Market Research Society|place=London|year=1994|title=The Opinion Polls and the 1992 Election: a Report to the Market Research Society }}</ref><ref>{{cite web |first=Clive |last=Payne |title=Election Forecasting in the UK |date=2001-11-28 |url=http://www.nuffield.ox.ac.uk/Politics/papers/2002/w8/forecast.pdf |access-date=2008-10-23 }}</ref>

Another example of this was the [[2024 Indian general election]], in which after the voting ended, exit polls showed that the incumbent [[Bharatiya Janata Party]]–[[National Democratic Alliance|NDA]] government of [[Narendra Modi]] would win 350 to 370 seats in the [[Parliament of India]] and thus a landslide, but the actual results showed the opposition's strong performance and led to the BJP failing to gain a majority on its own.

As exit polls require a baseline to compare swing against, they are not reliable for one-off votes such as the [[2014 Scottish independence referendum|Scottish independence referendum]] or the [[2016 United Kingdom European Union membership referendum|UK EU membership referendum]].<ref name="FT explanation" /><ref name="UK Polling Report" /> Because exit polls can't reach people who voted by [[postal ballot]] or another form of [[absentee voting]], they may be biased towards certain demographics and miss swings that only occur among absentee voters.<ref name="Warwick" /> For example, in the May round of the [[2016 Austrian presidential election]], exit polls correctly pointed to a narrow lead for [[Norbert Hofer]] among those who voted at a polling station.<ref>{{cite news|url=https://www.telegraph.co.uk/news/2016/05/22/austria-poised-to-elect-far-right-president-as-europes-populist/|title=Austria holds its breath as exit polls show far-Right candidate Norbert Hofer leads by the narrowest of margins |date=21 May 2016|access-date=10 June 2016|newspaper=The Daily Telegraph}}</ref> However, the postal votes (which made up about 12% of the total vote)<ref>{{cite news|url=https://www.bbc.com/news/world-europe-36353200|title=Austria presidential vote: Run-off rivals face dead heat|date=22 May 2016|access-date=10 June 2016}}</ref> were slightly but definitively in favour of his rival [[Alexander Van der Bellen]], and ultimately gave Van der Bellen victory. This could be considered a non-U.S. example of [[blue shift (politics)|the phenomenon known as "blue shift"]] in the U.S.

==Organizations that conduct election exit polling==
[[File:KBS MBC SBS Exit Poll logo (English).svg|thumb|Logo of Korean Election Pool (KEP) South Korean election Exit Poll consisted of three major broadcasting networks.]] 
In the United States, the [[National Election Pool]] (NEP), conducts a joint election exit poll. As of 2018, the NEP members are [[American Broadcasting Company|ABC]], [[Columbia Broadcasting System|CBS]], [[CNN]], and [[National Broadcast Company|NBC]] (formerly also included [[Associated Press|AP]] and [[Fox News]]). Since 2004 this exit poll has been conducted for the NEP by Edison Media Research. Edison uses probability-based sampling.<ref>{{cite web |url=https://www.edisonresearch.com/election-polling/ |title=Edison Election Polling |website=Edison Research |access-date=1 November 2020 |archive-date=14 September 2022 |archive-url=https://web.archive.org/web/20220914114719/https://www.edisonresearch.com/election-polling/ |url-status=dead }}</ref>  In 2020, in-person interviews on Election Day were conducted at a random sample of 115 polling locations nationwide among 7,774 Election Day voters. The results also include 4,919 telephone interviews with early and absentee voters.<ref>{{cite news |first=Jennifer |last=Agiesta |title=Voters divided over top issues in their vote for president, early CNN national exit poll shows |url=https://www.cnn.com/2020/11/03/politics/exit-polls-2020/index.html |work=CNN |date=November 3, 2020}}</ref>

The release of exit poll data in the United States is controlled. During the [[2012 United States elections|2012 elections]], protocols to quarantine the release of data were put in place.<ref>{{Cite web |url=http://www.poynter.org/latest-news/mediawire/194410/exit-poll-data-will-be-examined-in-quarantine-room/ |access-date=6 November 2012 |archive-url=https://web.archive.org/web/20121108164652/http://www.poynter.org/latest-news/mediawire/194410/exit-poll-data-will-be-examined-in-quarantine-room/ |archive-date=8 November 2012 |url-status=dead |df=dmy-all |title=Exit poll data will be examined in 'quarantine room'|first=Andrew |last=Beaujon |date=November 6, 2012 |website=The Poynter Institute}}</ref>

In Egypt, the Egyptian Center for Public Opinion Research conducted two exit polls in 2014 for the [[2014 Egyptian constitutional referendum|constitutional referendum]] and [[2014 Egyptian presidential election|presidential election]].

In South Korea, exit polls have been conducted by Kantar Public for [[Korean Broadcasting System|KBS]], [[Seoul Broadcasting System|SBS]], and [[Munhwa Broadcasting Corporation|MBC]].<ref>{{Cite web |title=Forecasting the South Korean election |url=https://www.kantar.com/uki/industries/government-and-public-sector/forecasting-the-south-korean-election |access-date=2024-07-06 |website=Kantar |language=en}}</ref>

In India, exit polls are conducted by private news broadcasting channels and newspaper agencies such as [[The Times Group]], [[CVoter]], [[India Today]], etc. India being the largest democracy in the world has many agencies publishing exit polls which roughly predict the outcome of the elections.<ref>{{cite news |url=https://economictimes.indiatimes.com/news/elections/lok-sabha/india/general-elections-2019-all-you-need-to-know-about-exit-polls/articleshow/69399070.cms |title=Exit Polls: Here's all you need to know about Exit polls |date=March 7, 2022 |work=The Economic Times}}</ref>

In Singapore, where exit polls are banned due to privacy issues,<ref>{{cite web |last1=Shafeeq |first1=Syarafana |title=Public reminded to avoid publishing, reposting election surveys, ads: ELD |url=https://www.straitstimes.com/singapore/public-reminded-to-avoid-publishing-reposting-election-surveys-ads-eld |website=The Straits Times |access-date=6 July 2024 |language=en |date=22 August 2023}}</ref><ref>{{cite web |title=REMINDER ON LAWS ON ONLINE ELECTION ADVERTISING, ELECTION SURVEYS AND EXIT POLLS |url=https://www.eld.gov.sg/press/2023/PR%20on%20Laws%20on%20Online%20Election%20Advertising,%20Election%20Surveys%20and%20Exit%20Polls.pdf |access-date=6 July 2024}}</ref> a variant of the exit poll, dubbed [[sampling (statistics)|sample counts]], are used instead and have been implemented in every election since [[2015 Singaporean general election|2015]].<ref>{{cite web |url=http://www.eld.gov.sg/mediarelease/ELD_SampleCount_1Sep.pdf |title=eld.gov.sg |access-date=12 September 2015 |archive-url=https://web.archive.org/web/20150926155923/http://www.eld.gov.sg/mediarelease/ELD_SampleCount_1Sep.pdf |archive-date=26 September 2015 |url-status=dead }}</ref><ref>{{cite web|title=GE2020 explainer: What are sample counts and how they are generated|url=https://www.todayonline.com/singapore/ge2020-explainer-what-are-sample-counts-and-how-they-are-generated|access-date=10 July 2020|website=Today|location=Singapore|archive-url=https://web.archive.org/web/20200710171427/https://www.todayonline.com/singapore/ge2020-explainer-what-are-sample-counts-and-how-they-are-generated|archive-date=10 July 2020|url-status=live}}</ref>

==Criticism and controversy==
Widespread criticism of exit polling has occurred in cases, especially in the [[United States]], where exit poll results have appeared and/or have provided a basis for projecting winners before all real polls have closed, thereby possibly influencing election results. States have tried and failed to restrict exit polling; however, it is protected by the First Amendment.<ref>Pickert, Kate. "A Brief History of Exit Polling." Time. Time Inc., 04 Nov. 2008. Web. 16 Nov.https://content.time.com/time/politics/article/0,8599,1856081,00.html</ref> In the [[1980 United States presidential election|1980 US presidential election]], NBC predicted a victory for Ronald Reagan at 8:15 pm EST, based on exit polls of 20,000 voters. It was 5:15 pm on the West Coast, and the polls were still open. There was speculation that voters stayed away after hearing the results.<ref>Facts on File Yearbook 1980 p865</ref> Thereafter, television networks have voluntarily adopted the policy of not projecting any victor within a state until all polls have closed for that state.<ref>{{cite web|title=Explaining Exit Polls|url=http://www.aapor.org/Education-Resources/Election-Polling-Resources/Explaining-Exit-Polls.aspx|website=AAPOR|access-date=27 April 2016|archive-date=12 April 2016|archive-url=https://web.archive.org/web/20160412164054/http://www.aapor.org/Education-Resources/Election-Polling-Resources/Explaining-Exit-Polls.aspx|url-status=dead}}</ref>  In the [[2000 United States presidential election|2000 US presidential election]] it was alleged that media organizations released exit poll results for [[Florida]] before the polls closed in the Republican-leaning counties of the [[Florida Panhandle|panhandle]], as part of the westernmost area of the state is one hour behind the main peninsula. A study by economist [[John R. Lott|John Lott]] found an "unusual" decline in Panhandle voter turnout compared to previous elections, and that the networks' early call of Florida for Democrat [[Al Gore]] may have depressed Republican turnout in other states where the polls remained open.<ref>{{cite report |author=John Lott |date=December 1, 2000 |title=Documenting Unusual Declines in Republican Voting Rates in Florida's Western Panhandle Counties in 2000 |url=https://www.readcube.com/articles/10.2139%2Fssrn.276278 |publisher=American Enterprise Institute |page=7 |doi=10.2139/ssrn.276278 |access-date=April 16, 2022 |quote="The results...clearly show an unusual drop-off in Republican turnout in Florida's 10 western Panhandle counties in 2000."|url-access=subscription }}</ref>

Some countries, including the United Kingdom, Italy, France, Germany, India and Singapore, have made it a criminal offence to release exit poll figures before all polling stations have closed.<ref>{{cite web |url=https://www.article19.org/data/files/pdfs/publications/opinion-polls-paper.pdf |title=Comparative study of laws and regulations restricting the publication of electoral opinion polls |archiveurl=https://web.archive.org/web/20080216000653/http://www.article19.org/pdfs/publications/opinion-polls-paper.pdf |archivedate=16 February 2008 |website=Article 19 |date=2003}}</ref><ref>{{cite news |url=https://mothership.sg/2020/06/exit-polls-election-surveys-ge2020/ |title=Here's why you will never see exit poll & election survey results even though it's GE2020 |first=Joshua |last=Lee |date=June 25, 2020 |work=Mothership}}</ref>

In some instances, problems with exit polls have encouraged polling groups to pool data in hopes of increased accuracy. This proved successful during the [[2005 United Kingdom general election|2005 UK general election]], when the [[BBC]] and [[ITV (TV network)|ITV]] merged their data to show an exit poll giving [[Labour Party (UK)|Labour]] a majority of 66 seats, which turned out to be the exact figure. This method was also successful in the [[2007 Australian federal election]], where the collaboration of [[Sky News Australia|Sky News]], [[Seven Network]] and Auspoll provided an almost exact 53 per cent [[Two-party-preferred vote|two party-preferred]] victory to [[Australian Labor Party|Labor]] over the ruling [[Coalition (Australia)|Coalition]].

There was a widespread controversy during the [[2014 Indian general election]] when the [[Election Commission of India]] barred media organisations from displaying exit poll results until the votes had been counted. This was followed by a strong protest from the media which caused the Election Commission to withdraw its statement and confirm that the exit polls could be shown at 6:30 PM on 12 May after the last vote was cast. Since then exit polls have been prohibited in India while the polls are open, only post-poll opinion surveys are allowed.

== References ==
{{Reflist}}

==Further reading==
* {{Cite news |last=Bello |first=Ademola |date=2024-07-04 |title=What Makes the U.K. Exit Poll So Trusted |url=https://www.nytimes.com/2024/07/04/world/europe/uk-election-exit-poll.html |access-date=2024-08-29 |work=The New York Times |language=en-US |url-access=subscription}}
* {{Cite web | url=http://www.pollster.com/faq/faq_questions_about_exit_polls_1.php | title=Questions About Exit Polls | first=Mark | last=Blumenthal | publisher=Pollster.com | year=2008 |access-date=4 November 2008}}
* Chatterjee, Somdeep, and Jai Kamal. "Voting for the underdog or jumping on the bandwagon? Evidence from India’s exit poll ban." ''Public Choice'' (2020): 1-23.
* {{Cite journal | title=Exit polling in a cold climate: the BBC–ITV experience in Britain in 2005 |author1=Curtice, John |author2=David Firth | journal=Journal of the Royal Statistical Society, Series A (Statistics in Society) | publisher=Journal of the Royal Statistical Society A | date=17 October 2007| volume=171 | issue=3 | pages=509–539 | doi=10.1111/j.1467-985X.2007.00536.x | url=http://wrap.warwick.ac.uk/30068/1/WRAP_Curtis_06-04wv3.pdf | doi-access=free }}
* Desilver, Drew. "Just how does the general election exit poll work, anyway?." ''Pew Research Center'' (2016). [http://web.crc.losrios.edu/~larsenl/ExtraMaterials/How%20the%20general%20election%20exit%20poll%20works%20_%20Pew%20Research%20Center.pdf online]
* Klima, André, et al. "Combining Aggregate Data and Exit Polls for the Estimation of Voter Transitions." ''Sociological Methods & Research'' 48.2 (2019): 296–325. [https://www.researchgate.net/profile/Helmut_Kuechenhoff/publication/316869933_Combining_Aggregate_Data_and_Exit_Polls_for_the_Estimation_of_Voter_Transitions/links/5cf4b92f92851c4dd02414e7/Combining-Aggregate-Data-and-Exit-Polls-for-the-Estimation-of-Voter-Transitions.pdf online]
* {{Cite web | url=http://archives.cnn.com/2001/ALLPOLITICS/stories/02/02/cnn.report/cnn.pdf | title=Television's Performance on Election Night 2000: A Report for CNN | author1=Konner, Joan | author2=James Risser | author3=Ben Wattenberg | publisher=[[CNN]] | date=29 January 2001 | access-date=4 November 2008 | archive-date=31 May 2013 | archive-url=https://web.archive.org/web/20130531221230/http://archives.cnn.com/2001/ALLPOLITICS/stories/02/02/cnn.report/cnn.pdf | url-status=dead }}
* Runciman, Carin. "Gendered risks in survey research: reflections from South African exit polls." ''International Journal of Social Research Methodology'' (2020): 1–5.
* {{Cite web | url=http://www.fivethirtyeight.com/2008/11/ten-reasons-why-you-should-ignore-exit.html | title=Ten Reasons Why You Should Ignore Exit Polls | first=Nate | last=Silver | publisher=[[FiveThirtyEight.com]] | date=4 November 2008 | access-date=4 November 2008 | archive-date=15 March 2014 | archive-url=https://web.archive.org/web/20140315223700/http://www.fivethirtyeight.com/2008/11/ten-reasons-why-you-should-ignore-exit.html | url-status=dead }}
* {{Cite web | url=https://abcnews.go.com/Politics/Vote2008/story?id=5973947 | title=EXPLAINER: How Exit Polls Work | last=Sproul | first=Robyn | publisher=[[ABCNews.com]] | access-date=22 October 2008 | date=22 October 2008}}
* Wilks-Heeg, Stuart, and Peter Andersen. "The Only (Other) Poll That Matters? Exit Polls and Election Night Forecasts in BBC General Election Results Broadcasts, 1955–2017." ''Political Studies'' (2020) [https://journals.sagepub.com/doi/pdf/10.1177/0032321720906324 online]

== External links ==
* [https://www.edisonresearch.com/election-polling/ Edison Research] {{Webarchive|url=https://web.archive.org/web/20220914114719/https://www.edisonresearch.com/election-polling/ |date=14 September 2022 }}, which conducts the main exit polls in USA
* [https://www.wikihow.com/Conduct-a-Local-Election-Exit-Poll How to Conduct Exit Polls] {{Webarchive|url=https://web.archive.org/web/20180917071440/https://www.wikihow.com/Conduct-a-Local-Election-Exit-Poll |date=17 September 2018 }}

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