Sampling Methods Review

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What is a convenience sample?

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A convenience sample is a type of non-probability sampling where the sample is taken from a group that is easily accessible to the researcher.

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What is a simple random sample?

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A simple random sample is a sampling method where every individual has an equal chance of being selected, often achieved using random number generators.

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What is a stratified random sample?

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A stratified random sample is 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 a cluster sample?

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A cluster sample is a sampling method where the population is divided into clusters (often geographically), and entire clusters are randomly selected.

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What is the population in a survey?

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The population is the entire group of individuals or instances about whom we hope to learn.

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What is sampling bias?

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Sampling bias occurs when certain members of the population are systematically more likely to be selected than others, leading to an unrepresentative sample.

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What is the difference between qualitative and quantitative data?

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Qualitative data describes characteristics or qualities, while quantitative data involves numerical measurements.

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What is the purpose of random sampling?

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The purpose of random sampling is to ensure that every individual has an equal chance of being selected, which helps to eliminate bias.

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What is a survey?

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A survey is a method of collecting data by asking questions to a group of people to gather information about their opinions, behaviors, or characteristics.

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What is a sample?

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A sample is a subset of individuals selected from a larger population, used to make inferences about the population.