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.

In equal probability sampling, each unit in the sampling frame, or in a stratum, has the same probability of being selected for the sample. PROC SURVEYSELECT provides the following methods that select ...

There are techniques for creating a sampling that provide the most accurate data. Probability proportional to size sampling, or PPS, is one such technique.

Survey sampling and estimation methods form the cornerstone of modern statistical inference, underpinning research across the social, medical, and natural sciences. At their heart, these methods ...

Bart Buelens, Joep Burger, Jan A. van den Brakel, Comparing Inference Methods for Non-probability Samples, International Statistical Review / Revue Internationale de Statistique, Vol. 86, No. 2 ...

The other – and arguably the biggest — difference is that the samples for these surveys are selected using so-called non-probability sampling methods. For decades, only probability – or random – ...

Among them, this article focuses on the latest cases of European countries that attempt to shift their survey methods based on probability sampling from conventional ones such as face-to-face ...

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 ...