Answer: gallup polling
Explanation:
The poll-taking method called quota sampling was invented by George Gallup.
While the term "stratified sampling" is commonly associated with George Gallup, it is important to note that Gallup's technique was actually a variation of quota sampling. Quota sampling is a method used to select survey participants that aim to achieve a proportional representation of different demographic groups in the population being studied.
Instead of randomly selecting individuals from each group, as in stratified sampling, quota sampling involves setting specific quotas for each demographic category and selecting participants until those quotas are met. The key idea behind quota sampling is to ensure that the final sample reflects the desired demographic distribution, such as age, gender, race, education level, or geographic location.
The researcher or interviewer is typically given specific instructions to recruit a predetermined number of individuals from each category until the quotas are filled. Quota sampling is often used when it is difficult or impractical to implement true random sampling techniques. It allows for greater control over the composition of the sample and can be more cost-effective and time-efficient compared to other sampling methods.
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