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December 17, 2014 / C H Thompson

Representativeness

Representativeness refers to the chosen sample being a representative sample.

A representative sample is a smaller group (the sample via sociologists chosen sample method) taken from the survey population which contains a good cross-section of the survey population.

The constitution of a good cross-section means it has the correct proportion of people with different ethnic origins, ages, social classes and gender.

Data gathered from a good cross-section is seen to provide (roughly) the same results as if the whole population had actually been surveyed/questioned.

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