Ahead of the June 3 local elections, various opinion polls have shown significant discrepancies in the approval rating gap ...
A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Pew Research Center conducts surveys all around the world on a variety of topics ...
As polling takes center stage again this election year, understanding its strengths and weaknesses is critical. At Pew Research Center, we’ve looked hard at the advantages and limitations of our ...
Collectively, recreational fisheries can take a significant fraction of the yearly catch—in some cases more than commercial fisheries. It is important that systems used to monitor fishing catch are ...
In a paper initially prepared for the planning meeting for this review, Peytchev (2013) observes that drawing “unbiased inference from probability-based surveys relies on the collection of data from ...