Today our teacher taught non-probability sampling, but I was sleeping at the time. The teacher said that the final exam will test this knowledge.
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Non-probability sampling includes convenience sampling, judgment sampling, quota sampling, and snowball sampling.
What is the difference between them?
Then, you will use gender and employment status to reflect similar ratios of male/female and employed/unemployed in Changchun.This is called quota sampling.
Okay, I probably understand, please continue.
And then by these second batch of respondents to provide a third batch of respondents, and so on, the sample is like a snowball from small to large.
This sampling method sounds really interesting, I get it!