Zogby Analytics conducted an online poll of 1,016 actual voters in the US for the National Wildlife Federation.
Using trusted interactive partner resources, thousands of adults were invited to participate in this interactive survey. Each invitation is password coded and secure so that one respondent can only access the survey one time.
Using information based on census data, voter registration figures, CIA fact books and exit polls, we use complex weighting techniques to best represent the demographics of the population being surveyed. Weighted variables may include age, race, gender, region, party, education, and religion.
Based on a confidence interval of 95 percent, the margin of error for 1,016 is +/- 3.1 percentage points. This means that all other things being equal, the identical survey repeated will have results within the margin of error 95 times out of 100.
Subsets of the data have a larger margin of error than the whole data set. As a rule we do not rely on the validity of very small subsets of the data especially sets smaller than 50-75 respondents. At that subset we can make estimations based on the data, but in these cases the data is more qualitative than quantitative.
Additional factors can create error, such as question wording and question order.
## About Zogby Analytics:
For three decades, the Zogby companies have produced polls with an unparalleled record of accuracy and reliability. Zogby telephone and interactive surveys have generally been the most accurate in U.S. Presidential elections since 1996.
Zogby Analytics is composed entirely of senior level executives from Zogby International. Zogby Analytics, along with renowned pollster John Zogby, have continued in the tradition of conducting telephone and interactive surveys, while keeping an eye on the future by incorporating social media tracking and analysis into our work.
Zogby Analytics conducts a wide variety of surveys internationally and nationally in industries, including banking, IT, medical devices, government agencies, colleges and universities, non-profits, automotive, insurance and NGOs.
About National Wildlife Federation:
The National Wildlife Federation is America's largest conservation organization inspiring Americans to protect wildlife for our children's future.