The margin of error, the plus or minus 3% in the above example, decreases as the sample size increases. This is only to a ...

"The polling industry is going through what I would call a paradigm shift, where we're moving from the types of methods that worked 30, 40 years ago and don't really work anymore," Smith said.

As the director of the Quinnipiac University Poll, which has been taking the pulse of the public on policy issues and elections for the past 30 years, I’ve noted that people have been paying ...

Pollsters don't have that kind of time — or money — so they use smaller samples of the population. They seek to identify representative samples in which all members of the larger group have a ...

In just about any discussion of a poll about the very close [US] presidential race between Vice President Kamala Harris and former President Donald Trump, you’ll hear the phrase “within the ...

A version of this article appears in print on , Section A, Page 2 of the New York edition with the headline: Where Polls Can Mess Up (and How to Fix It). Order Reprints | Today’s Paper | Subscribe ...

"The polling industry is going through what I would call a paradigm shift, where we're moving from the types of methods that worked 30, 40 years ago and don't really work anymore," Smith said.

"The polling industry is going through what I would call a paradigm shift, where we're moving from the types of methods that worked 30, 40 years ago and don't really work anymore," Smith said.