snowball sampling


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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.
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A sample of 140 eunuchs was collected from different areas of Hazara division, through purposive and snowball sampling technique.
These have undergone extensive usability testing, both by the authors and a group of medical librarians identified through snowball sampling.
250 grandparents are selected through multi-purpose sampling, where purposive sampling is used to identify family with exceptional child/children with the support of Parents Teacher Association (PTA) of different schools, located within the city, while snowball sampling is used to select the respondents from Karachi, Pakistan.
As to the authors' methodology, no reiteration of their snowball sampling technique is required.
Zuberi recruited preliminary interviewees at union meetings and used snowball sampling among these interviewees to broaden his sample.
Because of the snowball sampling strategy, respondents might not be representative for young Russian-Jewish males in Germany altogether.
The rankings based on snowball sampling, completes the first phase of the two-part survey.
Snowball sampling is also an acceptable sampling method in qualitative research.
Using snowball sampling technique, she sampled the opinions of thirteen Black males who had in one time or the other suffered racism, unjust discipline over non-violent incidents (p.
Finally, as Ear admits, the sample is not representative, given the snowball sampling used and the underrepresentation of respondents from the Royal Cambodian Government.
However, this study includes what I consider to be a huge caveat: "[T]he relatively modest sample size recruited via snowball sampling [my emphasis] resulted in the overrepresentation of young (below 28 years of age) female students.