In just about any discussion of a poll about the very close presidential race between Vice President Kamala Harris and former President Donald Trump, you'll hear the ...

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

Log-in to bookmark & organize content - it's free! CBS News Election and Surveys Director Anthony Salvanto explains the margin of error in survey data and how it can ...

This article originally appeared on Undark. When pollsters, journalists, and pundits want to signal that an opinion poll may not be right on target, they often turn ...

I am a statistician, and part of my job is to make inferences and predictions. With unlimited time and money, I could simply test or survey the entire group of people I am interested in to evaluate ...

While previous sections of this report have focused on the kinds of systematic biases that may be the largest worry when it comes to public opinion polls, the variance (or precision) of estimates is ...