The accuracy of a study is heavily influenced by the process of sampling. The article provides an overview of the various sampling techniques used in research. These techniques can be broadly categorised into two types: probability sampling techniques and non-probability sampling techniques. Probability sampling techniques include simple random sampling, systematic random sampling, and stratified random sampling. On the other hand, non-probability sampling techniques include quota sampling, self-selection sampling, convenience sampling, snowball sampling, and purposive sampling.
Cluster, Medical statistics, Sampling, Snowball
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