Sampling Methods - DS

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What is Convenience Sampling?

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A sampling method where the researcher selects individuals who are easiest to reach or access, rather than using a random selection.

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What is Systematic Sampling?

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A sampling method where researchers select every nth individual from a list or sequence.

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What is Stratified Sampling?

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A sampling method where the population is divided into subgroups (strata) and random samples are taken from each stratum.

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What is Simple Random Sampling (SRS)?

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A sampling method where every individual has an equal chance of being selected, typically achieved through random selection.

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What is Cluster Sampling?

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A sampling method where the population is divided into clusters, and entire clusters are randomly selected for the sample.

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Example of Convenience Sampling:

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A teacher surveys the first 5 students who arrive in class.

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Example of Systematic Sampling:

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A researcher surveys every 10th person on a list of registered voters.

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Example of Stratified Sampling:

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A school surveys students from different grades to ensure representation from each grade level.

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Example of Simple Random Sampling:

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A lottery where names are drawn randomly from a hat.

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Example of Cluster Sampling:

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A researcher selects 3 classrooms from a school and surveys all students in those classrooms.