Sampling Method

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What is a Convenience Sample?

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A Convenience Sample selects a particular number or numbers for the reason that it is easily accessible to the researcher.

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What is a Simple Random Sample (SRS)?

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A Simple Random Sample (SRS) is a sampling method where every member of the population has an equal chance of being selected.

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What is a Stratified Sample (STR)?

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A Stratified Sample (STR) divides the population into subgroups (strata) and then takes a random sample from each stratum.

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What is a Cluster Sample (CLS)?

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A Cluster Sample (CLS) involves dividing the population into clusters (usually geographically) and then randomly selecting entire clusters.

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What is a Systematic Sample (SYS)?

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A Systematic Sample (SYS) selects members from a larger population according to a random starting point and a fixed periodic interval.

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How does a Convenience Sample differ from other sampling methods?

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A Convenience Sample is based on ease of access rather than random selection, which can lead to bias.

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What is the main advantage of using a Simple Random Sample?

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The main advantage of a Simple Random Sample is that it minimizes bias and allows for generalization to the population.

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When would you use a Stratified Sample?

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A Stratified Sample is used when the population has distinct subgroups that need to be represented in the sample.

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What is the purpose of using a Cluster Sample?

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A Cluster Sample is often used for cost-effectiveness and practicality when dealing with large populations.

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What is an example of a Systematic Sample?

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An example of a Systematic Sample is selecting every 10th person from a list of registered voters.