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Response Rate

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Definition: In a survey, the response rate is the percentage of those selected in a sample who actually provide data for analysis. The response rate is crucial in survey research because the lower it is the greater the danger that the sample is biased in one way or another. For example, people who refuse to be interviewed are expected to be different in socially significant ways from those who do not.
Examples:
If you select 1,000 people to be surveyed and only 500 people actually complete and return the survey, the response rate is 50%.

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