Perhaps the most important part of the survey process is the creation of questions that accurately measure the opinions, experiences and behaviors of the public. Accurate random sampling will be ...

NICE public health guidance is informed by a variety of types of evidence (Lomas et al. 2005) (see section 1.5). This chapter describes some of the types of evidence reviews that the Centre for Public ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. One reality of the polling world is item nonresponse — that is, when survey ...