Types of probability samples

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9 Terms

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Random

Using a random or chance method to obtain a sample

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Systematic

Number each element in the population and selecting every kth element

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Stratified

Divide the population into the “sub” groups according to a characteristic important to the study and then choosing samples from the subset groups

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Cluster

Population(pre-existing) is divided into groups by geographical area

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Self-selected

people voluntarily take a survey

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Convenience

choosing people at your convinience

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Purposive

Asking a knowledgeable subset about the problem

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Snowball

selecting people for surveys by recommendations of those getting surveyed

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Quota

Asking a certain number of people form each subset