Whats the difference between stratified sampling and quota sampling?

January 10, 2021
Hospice Facility Consultant Essay- Please read all requirements-One Deliverable due 01-29-17 actual project not until 02-04-17
January 10, 2021

Stratified sampling is a probability sampling method while quota sampling is a non-probability sampling method.

Stratified sampling includes sub-dividing the sample into mutually exclusive and exhaustive groups. A simple random sample is then chosen independently from each group. This way, the probability of each element in a given group being selected is equal. Quota sampling, on the other hand, is a type of judgement sampling. In quota sampling, quotas are set up according to some characteristics. Within a given quota, the interviewer has to interview a certain number of people. The interviewer is free to choose anyone he wants. So personal judgement and bias may come in. However, this is the most common type of non-random sampling.

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