report | Feb 14, 2007

How Reliable Are the Early Presidential Polls?

As the number of declared presidential candidates grows, followers of early poll readings should bear in mind some caveats. Early frontrunners for the Republican nomination in most of the past seven open contests have gone on to win the nomination, but this year there are two GOP frontrunners instead of one clear leader. On the Democratic side, even when there is a clear frontrunner as there is this year with Sen. Hillary Clinton, the early polls have been less reliable in predicting who will capture the nomination.

report | Oct 26, 2006

Cell-Only Voters Not Very Different

Political pollsters continue to cast a wary eye on the growing number of Americans who use only a cell phone and have no landline. The Pew Research Center estimates that this group now constitutes one-in-ten adults. But three Pew surveys of cell-only Americans this year have found that their absence from landline surveys is not creating a measurable bias in the bottom-line findings.

report | Oct 26, 2006

Are National Polls Reliable Predictors of Midterm Elections?

National elections are the high season for pollsters and with Election Day now less than two weeks away, new polls on the fight for Congress are being released nearly every day. Commonly, pollsters use something called the "generic ballot" to assess the state of the congressional race. Just how accurate is the "generic ballot" in predicting election results?

report | Sep 28, 2006

Lenski on Exit Polls in the Coming Elections

In an exclusive interview, Joe Lenski of Edison Media Research reflects on conducting his first election day survey following the death of his former partner, exit poll pioneer Warren Mitofsky. He also reveals steps that will be taken to avoid problems associated with the 2004 poll.

report | May 15, 2006

The Cell Phone Challenge to Survey Research

Summary of Findings A growing number of Americans rely solely on a cell phone for their telephone service, and many more are considering giving up their landline phones. This trend presents a challenge to public opinion polling, which typically relies on a random sample of the population of landline subscribers. A new study of the […]

report | May 18, 2001

Screening Likely Voters: A Survey Experiment

Introduction and Summary Traditionally, pollsters trying to accurately assess voter intentions have struggled with a basic problem — figuring out who actually is going to show up to vote. In the 2000 election campaign, sharp fluctuations in the Gallup Organization’s daily tracking poll were blamed by some on difficulties in nailing down likely voters. Similar […]

report | May 13, 2001

No Consensus on the Census

Introduction and Summary Dramatic increases in both the size and ethnic diversity of America’s population, reflected in the 2000 census, are drawing a mixed reaction from the public. Consistent with a long-term rise in favorable attitudes toward immigrants, more people say today’s immigrants are better able to adapt to American life than did so four […]

report | May 16, 1998

Possible Consequences of Non-Response for Pre-Election Surveys

Survey Findings Pre-election polling is tricky work. A number of unknown factors can stand in the way of accurate predictions — problems with identifying registered and likely voters, uncertainties about voter turnout, and last-minute shifts in candidate preference. But estimating voter preferences in biracial elections has been especially difficult. Pre-election surveys, even those taken just […]

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Signature Reports

report | Nov 19, 2019

A Field Guide to Polling: Election 2020 Edition

While survey research in the United States is a year-round undertaking, the public’s focus on polling is never more intense than during the run-up to a presidential election.

report | Mar 31, 2017

Are Telephone Polls Understating Support for Trump?

An experiment comparing responses to 27 questions fielded on both a telephone and a web survey found no significant mode differences in overall opinion about Trump or many of his signature policy positions.