AP to present VoteCast results at AAPOR polling conference

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The Associated Press and NORC at the University of Chicago will present the results of AP VoteCast, the new standard in election research, at the American Association for Public Opinion Research conference in Toronto on Saturday.

AP VoteCast captures the opinions and preferences of voters as they choose who to vote for, along with the reasons behind their decision. Developed with NORC, VoteCast is a modern approach to public opinion research designed to deliver a broad and more accurate picture of the American electorate than ever before.

AP VoteCast replaces the polling results the news agency once used from the traditional, in-person exit poll.

Along with helping AP call races on Election Day, data from VoteCast – when paired with AP's vote count – ensures AP and its customers have all the information they need to tell the story of the U.S. presidential primaries and general elections.

The presentations at the AAPOR conference, which will be livestreamed, will include a detailed report assessing the success of AP VoteCast's debut in the 2018 U.S. midterm elections. 

AP and NORC are committed to transparency in conducting AP VoteCast and sharing the results returned by its innovative methodology for peer and academic review.

As part of that commitment, the 2018 AP VoteCast data is now available for download at:

The public use file contains the data in a variety of formats; a codebook with a list of variables, methodology and national frequencies; and the full AP VoteCast survey questionnaire.

AP VoteCast delivered impressive results in the 2018 U.S. midterm elections. The survey's portrait of the electorate largely matched comparable results from the U.S. Census' Current Population Survey for all age, gender, racial and ethnic groups, and education levels. At 5 p.m. on Election Day, AP VoteCast's estimates of vote choice also correctly projected the winner in 92 percent of the 35 races for U.S. Senate and 36 races for governor.

The average error in those races was only 1.2 percentage points. In past elections at that time, the error in favor of the Democratic candidate reported by the in-person exit poll that AP VoteCast replaced was often measured in double digits.

AP and NORC will present "AP VoteCast 2018: Methodology and Results" at the AAPOR conference at 1:45 p.m. ET on Saturday.

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