A very important topic in research is representativeness. Perhaps it is even the most important topic. In the case of a non-representative response, not all of the conclusions that can be drawn may be justified. Unfortunately, even many scientists treat this subject incorrectly.
Different views on representativeness can be distinguished. One of these is taking a random sample. However, it can be demonstrated that with random sampling at least five percent of the samples will be non-representative.
Very often, researchers claim to have drawn a representative sample. However, a representative sample is not the problem. A representative response is required. A non-representative sample can even be used as a strategy to get a representative response. All this is explained in this paper.
If you want to improve the quality of your research, make sure you have a representative response. You can learn how to achieve this in this paper.
I wish you the best of luck with your research.
Foeke van der Zee
Author of this paper/manual
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