The first video in Pew Research Center’s Methods 101 series helps explain random sampling – a concept that lies at the heart of all probability-based survey research – and why it’s important. Fresh ...

Nosocomial infections are infections that are acquired while at a health care facility and are not present at the time of admission. Nosocomial infections are many times also called hospital acquired ...

This is a preview. Log in through your library . Abstract Maintaining native plant diversity, detecting exotic species, and monitoring rare species are becoming important objectives in rangeland ...

Considerable controversy has taken place between those who favor quota sampling and those who advocate area sampling in opinion polling. This article does not attempt to give a final solution to the ...

Researchers at Karolinska Institutet, KTH Royal Institute of Technology and SciLifeLab have developed a new method for detecting early signs that the disease type 1 diabetes is going to develop. The ...