quota sampling

statistics

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July 17, 2026

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Quota sampling is a nonprobability sampling method used in statistics. It aims to create a sample that mirrors the characteristics of a larger population. Researchers establish quotas for specific demographic traits, such as age, gender, or education level, based on known population proportions. Interviewers then find individuals who fit these quotas. While relatively easy to implement, quota sampling has drawbacks. It's impossible to calculate the probability of selection for each individual, making it difficult to estimate sampling error. Additionally, interviewer judgment in selecting respondents can introduce bias.12

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public opinion
Nonprobability sampling
Their solution was the quota sample, which attempts to match the characteristics of the sample with those of the universe, thereby achieving a small replica of the universe. For example, if one knows, possibly on the basis of a recent census, that there are 51 women to every 49…
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Their solution was the quota sample, which attempts to match the characteristics of the sample with those of the universe, thereby achieving a small replica of the universe. For example, if one knows, possibly on the basis of a recent census, that there are 51 women to every 49…
Read More