snowball sampling (redirected from Snowball sample)
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snowball sampling a method of selecting a SAMPLE by starting with a small selected group of respondents and asking these for further contacts. This is not therefore a RANDOM SAMPLE and no inferences about the characteristics of the parent population can be made from such a study. Its use is primarily in the collection of in-depth, qualitative data, perhaps on sensitive topics, where an obvious SAMPLING FRAME does not exist and the best method of selection is through personal contacts. Such a method might be used in an investigation of sexual habits or bereavement experiences.