This study looks at how national public opinion polling in the United States changed from 2000 to 2022. It focuses on two aspects: the sample source(s) – that is, where the survey takers came from – ...

Nielsen Wednesday unveiled plans to transition the methods it uses to recruit its paper diary ratings samples, shifting to one that utilizes the addresses of prospective panel households beginning in ...

The data in this Pew Research Center report is drawn from a national cross-sectional survey conducted by Westat. The sampling design of the survey was an address-based sampling (ABS) approach, ...

The KFF/LA Times Survey of Immigrants was conducted April 10 through June 12 online, by telephone and by mail among a nationally representative sample of 3,358 American adults born outside the U.S. It ...