This is a preview. Log in through your library . Abstract Data were collected when transmitters and receivers were at known locations. One method used to determine ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Every survey finding published by Pew Research ...

The first video in our “Methods 101” series is about random sampling, a concept that undergirds all probability-based survey research. Here’s how it works. Fresh data delivered Saturday mornings Thank ...

As Americans await election results, many are looking to the polls for answers. JUMP TO: MARGIN OF ERROR l PHONE/DIGITAL l OUTLIER POLLS Dr. Andy Smith, from the ...

Gordon Luikart, Stephanie Zundel, Delpine Rioux, Christian Miquel, Kim A. Keating, John T. Hogg, Brian Steele, Kerry Foresman and Pierre Taberlet Noninvasive DNA ...

This article explores the impact of test volume, microbial distribution, and dilution errors on bioburden testing variability. It presents statistical approaches to ...