Lesson 3: Sample and sample size

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10 Terms

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population

totality of individuals/objects that are the focus of the study

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target population

the population used by the researchers in generalizing the conclusion of the study

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sampling frame

list of individuals/objects included in the target population

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sample

subset of the population chosen to participate in a study

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respondents

are the chosen subject of the study

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sample size

the number of elements in the sample set

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  • confidence level

  • margin of error

types of sample size

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confidence level

the level of precision that the true value of the parameter of the population is included in the sample

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margin of error

a range where the results from the samples taken are likely to represent the true values of the parameters of the population

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response rate

determined by dividing the number of usable responses by the total number of questionnaires fielded