Multiple choice

Which type of sampling is used when a researcher selects the sample by a chain referral from the key samples that have his/her own experience with the required matter of the research?

  1. Snowball sampling

  2. Quota sampling

  3. Cluster sampling

  4. Simple random sampling
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A Correct answer
Explanation

Snowball sampling is a non-probability sampling technique where existing study subjects recruit future subjects from among their acquaintances. Thus, the sample group appears to grow like a rolling snowball. This is also called chain referral sampling.

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