Examlex
In 1970 Stanier proposed that classification be based on
Chain Referral
A sampling method where existing study subjects recruit future subjects from among their acquaintances.
Quota Sampling
a market research technique that involves selectively collecting samples from a specific subset of a population, ensuring representation based on characteristics.
Initial Discovery
The first stage of research or inquiry where a new idea, phenomenon, or piece of information is identified.
Research
The systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions.
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