7 ms·

Here’s a good article from the YouGov site that describes their methodology: http://today.yougov.com/news/2012/10/23/obama-stays-ahead-just/ http://today.yougov

• Osmium 14y ago
  Thanks for the link. In short, it seems like only poll people they can confirm are actually registered to vote based on the fact that: "According to US census data, just 71% of eligible Americans are registered to vote. In 2008, almost 90% of those who were registered did vote. So in any poll, it is vital to know which respondents are on the register." But there're a few more interesting subtleties in there too, so it's worth a read.
• chmullig 14y ago
  YouGov does online polling, which allows them to get very large sample sizes for national polls. I believe they had on the order of 36,000 for their final poll. Compare that to others with just ~1000.