Human Selection Vs Random Selection

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Sampling the act, process, or technique of selecting a suitable sample; specifically : the act, process, or technique of selecting a representative part of a population for the purpose of determining parameters or characteristics of the whole population (merriam-webster.com). There are several types of sampling and we can put these into groups. In this essay we will look at 2 main groups: Human selection and Random selection in sampling. Opinion Polls, Convenience sampling, and Quota sampling are in the Human selection group. Simple Random sampling and stratified sampling are Random selection. If there are several ways of sampling, what are the positive and negative aspects of each of them?
One can look at the positive sides. In Human selection, sampling for opinion polls can be effective in that you can get personal opinions unlike other types. This is widely preferred since humans like to have their own input In convenience sampling you can take what you can get. The selections are equal for everyone. And in quota sampling the collector deliberately sets …show more content…

In Human selection for all of the previous stated sub topics there is a probability of chance error which comes from people not answering the questions honestly. This is a too common thing and results in bad samples. In worst cases, the information can be unusable. There is also a chance of the answers being biased to what is the more likable outcome. In random selection with the sub topics stated bad samples are possible too. Selecting data is very difficult but should be easier with random samples. However chance is also a disadvantage here. There is a probability -though selected at random- that the information is bad.Through this method some data may also be left out. There will also always be a bias. These are the main disadvantages. It is difficult to divide the sub topics and find each negative effect since these are the most important for all

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