METHODS OF DATA COLLECTION
CONCEPT OF SAMPLING AND OTHER CONCEPTS RELATED TO SAMPLING
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Random sampling
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Opportunity sampling
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Self-selected sampling
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Purposive sampling
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Detailed explanation-1: -Uses people from the target population available at the time and willing to participate. It is based on convenience. An opportunity sample is obtained by asking members of the population of interest if they would participate in your research.
Detailed explanation-2: -Convenience sampling A convenience sample simply includes the individuals who happen to be most accessible to the researcher. This is an easy and inexpensive way to gather initial data, but there is no way to tell if the sample is representative of the population, so it can’t produce generalizable results.
Detailed explanation-3: -Convenience sample: The researcher chooses a sample that is readily available in some non-random way.
Detailed explanation-4: -Systematic sampling: Researchers use the systematic sampling method to choose the sample members of a population at regular intervals. It requires selecting a starting point for the sample and sample size determination that can be repeated at regular intervals.