Results for the survey are based on telephone interviews conducted under the direction of Gallup and Langer Research Associates. The results are based on national samples, unless otherwise noted. More ...

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 ...

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 ...

Journal of Agricultural, Biological, and Environmental Statistics, Vol. 24, No. 1 (March 2019), pp. 26-48 (23 pages) When conducting a national survey or census, administrative data may be available ...