This is a preview. Log in through your library . Abstract Sample surveys are used to investigate occurrence and determinants of diseases in populations. Their reliability is influenced by quality of ...

Journal of the Royal Statistical Society. Series D (The Statistician), Vol. 44, No. 2 (1995), pp. 173-194 (22 pages) General population surveys in Britain tend to use either the electoral registers ...

One possible explanation for the variability in estimates across the different nonprobability samples is the range of methods that online sample vendors employ. They differ on recruitment, weighting ...

— -- ABC News polls of the general population are conducted by telephone among a random national sample of adults age 18 and over. Sampling and data collection for most of these polls is ...

The data in this report is drawn from a national cross-sectional survey conducted for Pew Research Center by Westat. The sampling design of the survey was an address-based sampling (ABS) approach, ...

Why do pollsters make such a big deal about probability sampling? You'd think that choosing people to interview should be easy. Take three of these, four of those, and two of the other. But it's not.

NEW YORK--(BUSINESS WIRE)--GfK has named Mansour Fahimi, Ph.D., as Senior Vice President of Sampling Statistics, signaling the company’s continued commitment to the highest standards in online ...