Sampling Techniques and Methods

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What is a census in sampling techniques?

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A census is a sample that consists of the entire population being studied.

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What is a convenience sample?

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A convenience sample consists of units of the population that are easily accessible to the researcher.

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What does it mean for a sample to be biased?

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A biased sample is one that does not accurately represent the population, leading to systematic differences in the results.

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What is a volunteer sample?

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A volunteer sample consists of units of the population that chose to respond or participate in the study.

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What is a biased sample?

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A biased sample is a sample that produces values that systematically differ from the population being sampled.

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What is a cluster sample?

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A cluster sample involves dividing the population into groups (clusters) and then randomly selecting entire clusters for the study.

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What is the difference between biased and unbiased samples?

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A biased sample does not accurately reflect the population, while an unbiased sample accurately represents the population.

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What is the importance of random sampling?

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Random sampling helps ensure that every member of the population has an equal chance of being selected, reducing bias.

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What is stratified sampling?

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Stratified sampling involves dividing the population into subgroups (strata) and randomly sampling from each stratum.

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What is systematic sampling?

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Systematic sampling involves selecting every nth member of the population after a random start.