Editing Sampling (statistics) (section)

=== Theoretical sampling ===
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{{Main|Theoretical sampling}}

Theoretical sampling<ref name=":0">{{Cite web|url = http://www.fao.org/ag/humannutrition/32428-0613f516cb07eade922c8c19b4d0452c0.pdf|title = Examples of sampling methods}}</ref> occurs when samples are selected on the basis of the results of the data collected so far with a goal of developing a deeper understanding of the area or develop theories. An initial, general sample is first collected with the goal of investigating general trends, where further sampling may consist of extreme or very specific cases might be selected in order to maximize the likelihood a phenomenon will actually be observable.