Glossary of Marketing Studies and Research
The sampling method can lead to biases. For example, when the
sample is not representative. This could happen when population is not well targeted, the sample
size is too low or the response rate of the survey is not sufficient.
There are methods to evaluate sampling errors in surveys conducted on a random sample of
individuals. It is important to note that the sample variance is the indicator very commonly
used to quantify sampling errors. Sampling errors are caused by the method of sampling and
estimations used in the survey.