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Election Reopens Debate Over Online Polling Election Reopens Debate Over Online Polling

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POLITICS

Election Reopens Debate Over Online Polling

Americans' increasing reliance on electronic sources of information and methods of communication led some pollsters and media outlets to embrace online polling this year, and its fairly accurate performance in predicting the results of the election is reigniting a longstanding feud within the survey-research field.

To be sure, the methodology remains controversial — National Journal is among the news organizations that does not normally report on the results of Internet polls — but many Web pollsters compiled strong records this year. The performance of Internet polls, along with the profound and rapid changes in the way Americans communicate, is forcing pollsters and news organizations to confront anew the viability of surveying voters via their computers.

 

At a recent event organized by the Washington chapter of the American Association for Public Opinion Research, Doyle McManus, a columnist for the Los Angeles Times and that paper's former D.C. bureau chief, neatly summed up the mainstream political media's view of Internet polling.

"I was brought up in a very strict Irish-Catholic household, where we never looked at online polls," McManus quipped.

But all that may be changing. In the days after the presidential election, Nate Silver of The New York Times wrote that "some of the most accurate firms were those that conducted their polls online," singling out Internet pollsters like Google Consumer Surveys, Ipsos Public Affairs, Angus Reid Public Opinion, and YouGov for producing surveys whose results jibed with election returns. Online polls appeared to outperform traditional phone polling modestly, and they were also better than automated telephone polling, which performed poorly on the whole.

 

The majority of media outlets continue to spurn Internet polling, however. Despite Silver's findings, The New York Times' polling standards do not permit reporting of online polls because participants for these surveys are not randomly selected, and roughly one-in-five Americans lack Internet access. "In order to be worthy of publication in The Times, a survey must be representative, that is, based on a random sample of respondents," according with the Times' policy, which was shared with National Journal. "Any survey that relies on the ability and/or availability of respondents to access the Web and choose whether to participate is not representative and therefore not reliable," the policy reads.

Distrust of web polling is not just limited to some legacy media outlets. At that recent postelection AAPOR gathering, a confrontation subtext was on clear display when a questioner from the Internet polling website SurveyMonkey asked a biting question of the panel of traditional pollsters.

Logging On

Online polls differ from telephone surveys in some basic ways. As the nomenclature suggests, respondents to Internet polls complete the surveys using their computer, tablet, or smartphone. But within the field of online polling, there are important differences in the way respondents are selected, known as sampling.

Traditional phone polling holds as one of its founding principles the idea of probability sampling; for the universe that is being surveyed, each member has a defined and equal likelihood of being selected to participate in the survey. When nearly every American lived in a household with a landline phone, it was easy to design a sampling frame for a basic political survey. Now, a dual-frame sample, combining landline and cell phones, is considered by phone pollsters to be closest to a true probability sample.

 

Internet polls, in most cases, use nonprobability sampling. They exclude households without Internet access; these tend to be older and lower-income Americans. Most online polls are also completed by people who opt to participate. Some participants sign up to complete online polls on websites that offer prizes such as gift cards to chain restaurants and movie theaters. Others are responding to ads placed on other websites that may or may not be related to the poll's subject, a technique known as river sampling.

Some online polls do use more-traditional sampling methods. GfK Knowledge Networks assembles its panels using address-based sampling, and those potential respondents who lack internet access but want to participate are provided with the hardware and Internet connection necessary for them to do so. This adds considerable expense for the pollster, but it helps to correct for what is known as noncoverage bias — the effect of not including certain segments of the population in the poll.

Breaks in the Dam

Some news organizations did begin to experiment with Internet polling during the 2012 cycle. CBS News dipped a toe in the water, partnering with YouGov for the CBS News/YouGov Electoral Vote Tracker, which in September showed President Obama with 332 electoral votes, identical to the numbers of votes he is likely to receive when the Electoral College convenes next month. But CBS also conducted national live-caller telephone polls, and they partnered with Quinnipiac University on battleground-state polls (most of which were cosponsored by The New York Times).

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