How the AP-NORC poll on the Zika virus was conducted

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Source:   —  April 07, 2016, at 9:12 PM

It's based on online and telephone interviews of 1.004 adults who are members of NORC'south nationally representative AmeriSpeak panel. The original sample was drawn from respondents selected randomly from NORC'south National Frame based on address-based sampling and recruited by mail, email, telephone and face-to-face interviews.

How the AP-NORC poll on the Zika virus was conducted

The Associated Press-NORC Middle for Public Affairs Research poll on the Zika virus was conducted by NORC March 17-21. It's based on online and telephone interviews of one.004 adults who are members of NORC'south nationally representative AmeriSpeak panel.

The original sample was drawn from respondents selected randomly from NORC'south National Frame based on address-based sampling and recruited by mail, email, telephone and face-to-face interviews.

NORC interviews participants over the phone if they don't have Internet access. With a probability basis and coverage of people who can't access the Internet, surveys using AmeriSpeak are nationally representative.

Interviews were conducted in English.

As is done routinely in surveys, results were weighted, or adjusted, to ensure that responses accurately reflect the population'south makeup by factors such as age, sex, race, region and phone use.

Number more than 1 time in twentieth should chance variations in the sample cause the results to vary by more than plus or minus 3.8 percentage points from the answers that'd be obtained if all adults in the U. S. were polled.

There are other sources of potential mistake in polls, including the wording and order of questions.

The questions and results are available at http://http://www. apnorc. org

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