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In sociology and statistics research, snowball sampling [1] (or chain sampling, chain-referral sampling, referral sampling [2] [3]) is a nonprobability sampling technique where existing study subjects recruit future subjects from among their acquaintances. Thus the sample group is said to grow like a rolling snowball.
Snowball sampling, involving the first respondent referring an acquaintance, and so on. Such samples are biased because they give people with more social connections an unknown but higher chance of selection, [10] but lead to higher response rates. Judgment sampling or purposive sampling, where the researcher chooses the sample based on who ...
In social science research, snowball sampling is a similar technique, where existing study subjects are used to recruit more subjects into the sample. Some variants of snowball sampling, such as respondent driven sampling, allow calculation of selection probabilities and are probability sampling methods under certain conditions.
Analytic study: A statistical study in which action will be taken on the process or cause-system that produced the frame being studied. The aim being to improve practice in the future. (In a statistical study, the frame is the set from which the sample is taken.)
Pages for logged out editors learn more. Contributions; Talk; Snowball method
In the new section I will compare traditional and online snowball sampling by providing additional advantages and disadvantages unique for online sampling i.e. problems with access to the Internet, sample selection bias based on characteristics of online population, expansion of geographical scope of the sample, sample size increase in ...
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In an independent study using convenience and snowball sampling, sociologist Terrell A. Hayes found and surveyed 46 DA members from July 1993 to June 1995. [ 49 ] [ 50 ] 42 of the members surveyed were attending meetings in the Eastern United States , the remaining four attended meetings in Austin, Texas .