Poll aggregator

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A poll aggregator is an entity that tracks and aggregates, often but not exclusively by averaging, individual polls conducted by different organizations in order to gauge public sentiment on key civic issues such as the approval rating of a major political figure (e.g., president, prime minister, monarch, governor, lawmaker, etc.), or legislative body; or to measure likely public support for an individual candidate or political party in an upcoming election. [1]

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Individual poll aggregation

A poll aggregator may also forecast the likely outcome of upcoming elections by gathering and analysing pre-election polls published by others, and/or utilizing other available politics-related information which, according to its methodology, may affect the outcome of an election. For example, an aggregator may attempt to predict the winner of a presidential election or the composition of a legislature, or it may focus on attempting to determine current opinion by smoothing out poll-to-poll variation. Editorial commentary by the site's owners and others complements the data. Interest and web traffic peak during the last few weeks before the election.

How individual polls are aggregated varies from site to site. Some aggregators take a long- or short-term running/rolling average or average the polls at certain points in time, while other aggregators might take a weighted poll average (e.g., giving less weight to older polls), or use some other proprietary method of aggregation, based on such factors as past pollster accuracy, age of the poll, or other more subjective factors. The averaging method has been criticized by at least one statistician because it doesn't weight them by sample size. [2] In this way the resulting average support percentages do not reflect the actual support percentage for any candidate of the pooled polls. According to the American Association for Public Opinion Research, "[o]ther aggregators use regression-based analyses — a method for adjusting data to account for unusual results ('outliers'). Other aggregators combine additional data like historical election results or economic data with current polling data through statistical methods – these are often called modelers." [1]

Aggregators are not capable of accounting for systematic errors in the polls themselves. For instance, if pollsters are misjudging the turnout demographics, aggregators cannot undo these errors. Likewise, when there is a tendency to herd (i.e. for different pollsters to converge on a particular result to avoid being an outlier), aggregators will reflect this.

Aggregators are useful in U.S. presidential elections because the presidency is determined by the winner of state by state elections (see Electoral College), and not by simple popular vote of the entire nation. Consequently to predict a winner, polls of individual states becomes more significant. An equivalent issue may arise in parliamentary systems if the legislature is sufficiently malapportioned as in Canada.

Veteran political journalist Bill Moyers has commented that poll aggregators are a good tool for sorting out the polls. [3]

Real Clear Politics was the first such website. It began aggregating polls in 2002 for the congressional elections that year. Several sites existed by 2004, including Andrew S. Tanenbaum's Electoral-vote.com, [4] and Sam Wang's Princeton Election Consortium. [5] Relative newcomer FiveThirtyEight began in 2008 by baseball statistician Nate Silver and has been lauded for the quality of its analysis. Pollster.com by Mark Blumenthal, now affiliated with the Huffington Post as Huffpost Pollster, [6] has likewise been given a top ranking for the depth and breadth of its chartable polling data. [7] Since 2010 the political blog Talking Points Memo has also sponsored a "PollTracker" feature which aggregates opinion polls. [8] Other noteworthy examples include Drew Linzer's Votamatic, [9] Josh Putnam's Frontloading HQ [10] as well as Politics by the Numbers [11] by Jay DeSart and Tom Holbrook. For an aggregator of poll aggregators see the PollyVote, which combines different polling averages as one component of a combined forecast of the US presidential election result. [12]

In Australia, William Bowe's Poll Bludger hosts the Bludger Tracker poll aggregator.

Europe Elects is a poll aggregator that collects voting intention polling data from across the European continent. The organization was founded in 2014.

Aggregating poll aggregators

Given the proliferation of poll aggregators such as those mentioned above, a notable approach to poll aggregation is not to aggregate individual polls as has been done for years, but rather to aggregate the poll aggregators so as to (arguably) provide an even more stable overview of polling data. PollyVote, noted above, is a prominent example of an aggregator of poll aggregators.

Related Research Articles

An opinion poll, often simply referred to as a survey or a poll, is a human research survey of public opinion from a particular sample. Opinion polls are usually designed to represent the opinions of a population by conducting a series of questions and then extrapolating generalities in ratio or within confidence intervals. A person who conducts polls is referred to as a pollster.

A straw poll, straw vote, or straw ballot is an ad hoc or unofficial vote. It is used to show the popular opinion on a certain matter, and can be used to help politicians know the majority opinion and help them decide what to say in order to gain votes.

Psephology is the "quantitative analysis of elections and balloting", a technique within the branch of political science known as political methodology. Psephology attempts to explain elections using the scientific method and is related to political forecasting.

An election exit poll is a poll of voters taken immediately after they have exited the polling stations. A similar poll conducted before actual voters have voted is called an entrance poll. Pollsters – usually private companies working for newspapers or 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 hours to count.

Electoral-Vote.com is a website created by computer scientist Andrew S. Tanenbaum. In the periods leading up to U.S. federal elections, the site's primary content is poll analysis to project election outcomes. Since the 2016 elections, the site also has featured daily commentary on political news stories.

Scientific, nationwide public opinion polls conducted relating to the 2008 United States presidential election include:

<span class="mw-page-title-main">Shy Tory factor</span> Phenomenon observed in opinion polling

"Shy Tory factor" is a name given by British opinion polling companies to a phenomenon first observed by psephologists in the early 1990s. They observed that the share of the electoral vote won by the Conservative Party was significantly higher than the equivalent share in opinion polls. The accepted explanation was that so-called "shy Tories" were voting Conservative after telling pollsters they would not. The general elections held in 1992 and 2015 are examples where it has allegedly affected the overall results, but has also been discussed in other elections where the Conservatives did unexpectedly well. It has also been applied to the success of the Republican Party in the United States or the continued electoral victories of the People's Action Party in Singapore.

Rasmussen Reports is an American polling company founded in 2003. The company engages in political commentary and the collection, publication, and distribution of public opinion polling information. Rasmussen Reports conducts nightly tracking, at national and state levels, of elections, politics, current events, consumer confidence, business topics, and the United States president's job approval ratings. Surveys by the company are conducted using a combination of automated public opinion polling involving pre-recorded telephone inquiries and an online survey. The company generates revenue by selling advertising and subscriptions to its polling survey data.

<span class="mw-page-title-main">Bradley effect</span> Theory about discrepancies between opinion polls and election results in the United States

The Bradley effect is a theory concerning observed discrepancies between voter opinion polls and election outcomes in some United States government elections where a white candidate and a non-white candidate run against each other. The theory proposes that some white voters who intend to vote for the white candidate would nonetheless tell pollsters that they are undecided or likely to vote for the non-white candidate. It was named after Los Angeles mayor Tom Bradley, an African-American who lost the 1982 California gubernatorial election to California attorney general George Deukmejian, a white person, despite Bradley being ahead in voter polls going into the elections.

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<span class="mw-page-title-main">Statewide opinion polling for the 2008 United States presidential election</span>

Statewide public opinion polls that were conducted relating to the 2008 United States presidential election are as follows.

<i>FiveThirtyEight</i> American news website

538, originally rendered as FiveThirtyEight, is an American website that focuses on opinion poll analysis, politics, economics, and sports blogging in the United States. The website, which takes its name from the number of electors in the United States electoral college, was founded on March 7, 2008, as a polling aggregation website with a blog created by analyst Nate Silver. In August 2010, the blog became a licensed feature of The New York Times online and was renamed FiveThirtyEight: Nate Silver's Political Calculus.

The PollyVote project uses the high-profile application of predicting U.S. presidential election results to demonstrate advances in forecasting research. The project is run by political science professors and forecasting experts, one of which is J. Scott Armstrong. All procedures, data, and results are fully disclosed and freely available online.

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The Quinnipiac University Poll is a public opinion polling center based at Quinnipiac University in Hamden, Connecticut. It surveys public opinion in Connecticut, Florida, Georgia, Iowa, Minnesota, New York, New Jersey, Pennsylvania, Ohio, Texas, Virginia, and nationally. The poll is unaffiliated with any academic department at the school and is run by Quinnipiac's public relations department.

Survation is a polling and market research agency based in London, England. Survation have been conducting research surveys since 2010. Surveys are conducted via telephone, online panel and face to face as well as omnibus research for a broad range of clients including television, newspapers, charities, lobby groups, trade unions, law firms and political parties. Damian Lyons Lowe is the company founder and Chief Executive.

Prior to the 2015 general election, various polling organisations conducted opinion polling in specific constituencies. The results of publicised opinion polling for individual constituencies are detailed in this article. However, most opinion polling covers Great Britain, where the results are published in this article here.

In the run-up to the general election on 8 June 2017, various organisations carried out opinion polling to gauge voting intentions. Results of such polls are displayed in this article. Most of the polling companies listed are members of the British Polling Council (BPC) and abide by its disclosure rules.

This page lists public opinion polls conducted for the 2002 French presidential election, which was held on 21 April 2002 with a run-off on 5 May 2002.

<span class="mw-page-title-main">Trafalgar Group</span> American opinion polling company

The Trafalgar Group is an opinion polling and survey company founded by Robert Cahaly and based in Atlanta, Georgia. It first publicly released polls in 2016. Trafalgar has been questioned for its methodology and for an apparent bias towards the Republican Party.

References

  1. 1 2 "Poll Aggregators". Am. Ass'n for Pub. Opinion Research (AAPOR). Retrieved 13 February 2019.
  2. "Election Handicappers Are Using Risky Tool: Mixed Poll Averages", the Numbers Guy, Wall Street Journal, February 15, 2008
  3. "Margins of Error. Poll Reading Tips", Bill Moyers Journal, October 24, 2008
  4. "Electoral-vote.com". electoral-vote.com.
  5. "Princeton Election Consortium — Innovations in democracy since 2004".
  6. "Pollster". HuffPost.
  7. "Your Guide to Political Polling Sites", MediaShift, National Public Radio, October 16, 2008
  8. "TPM PollTracker". Archived from the original on 2011-05-13. Retrieved 2011-05-18.
  9. "VOTAMATIC". VOTAMATIC.
  10. "Frontloading HQ".
  11. "Politics by the Numbers". politics-by-the-numbers.blogspot.de.
  12. Graefe, Andreas; Armstrong, J. Scott; Jones, Randall J. Jr; and Alfred G. Cuzán (2014). "Accuracy of combined forecasts for the 2012 Presidential Elections: The PollyVote". PS: Political Science & Politics. Cambridge Journals. 47 (2): 427–431. doi:10.1017/s1049096514000341. S2CID   53974907.