Serious polling requires careful data collection and careful adjustment. It doesn't mean much to say your poll is a "probability sample" when your nonresponse rate is 90 percent.

LENNART BONDESSON, ANTON GRAFSTRÖM, An Extension of Sampford's Method for Unequal Probability Sampling, Scandinavian Journal of Statistics, Vol. 38, No. 2, Papers from 23rd Nordic Conference on ...

Sampling the Soup If you do it right, probability sampling allows you to make conclusions about a lot of people using a small sample.

This paper deals with two schemes, π-inverse weights and best linear unbiased weights, for weighting of observations drawn by unequal probability sampling methods. The context is that of constructing ...

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 ...

1. Distinguish between probability and non-probability sampling and discuss the advantages and disadvantages of each. If you can not specify the probability that any given individual will be in the ...

Their study titled, “An Innovative Non-Pharmaceutical Intervention to Mitigate SARS-CoV02 Spread: Probability Sampling to Identify and Isolate Asymptomatic Cases,” was released at the pre ...

Proprietary research is not exempted. Methodologically, in all or nearly all cases, ABC News requires a probability-based sample, with high levels of coverage of a credible sampling frame.

This short paper investigates whether a volume-based approach to collecting opinions is a reasonable substitute for probability sampling.