quota sample

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quota sample

A cohort of research subjects selected because a certain percentage of them has a desired characteristic.
See also: sample
References in periodicals archive ?
A stratified quota sample (N=180) was classified into 18 categories based on age, gender, and socio-economic status level (SES).
Quota samples are known to be at risk for potentially significant biases.
Quota samples are frowned upon by the purists, but if properly designed and executed they are the most practical basis for conducting polls and have a good track record.
Had Kline been better informed about sampling matters, he would have underlined the difference between quota samples and carefully drawn random (or stratified random) samples.