A simple random sample is a subset of a statistical population where each member of the population is equally likely to be chosen.

As the costs and nonresponse rates of traditional, probability-based surveys seem to grow each year, the advantages of online surveys are obvious – they are fast and cheap, and the technology is ...

The same principle applies to online opt-in samples. The only difference is that for probability-based surveys, the selection probabilities are known from the sample design, while for opt-in surveys ...

In statistical analysis, a sampling distribution examines the range of differences in results obtained from studying multiple samples from a larger population.

Yves Tillé, Matthieu Wilhelm, Probability Sampling Designs: Principles for Choice of Design and Balancing, Statistical Science, Vol. 32, No. 2 (May 2017), pp. 176-189 ...

Although selecting a probability sample has been the standard for decades when making inferences from a sample to a finite population, incentives are increasing to use nonprobability samples. In a ...

This paper develops a design-based inference mode for the analysis of randomized experiments embedded in probability samples . To generalize results obtained with field experiments to large ...