However, some social surveys are conducted in quantitative method which lacks the ability to deduce a specific outcome from a few individuals to an entire group result from the composition of the representative group. Because a certain group of people may be divided into three separate factions when confronting a controversial issue: the advocators, the opponents and the eclectics. Each one of the factions is less liable to show inclination, not to mention representations, of the other two. A case in point is the incompatible opinions among people from different walks of lives as to the cloning of human beings. A number of scientists argue for the legalization of human replication as it is a landmark of biochemistry. Meanwhile, opponent response is heard from ethnic community, where the cloning of people is considered to be as demoralization and should be banned without hesitation. However, some people are still pendulous around and don t know which side to agree with. If a survey is only taken within one of the three groups, we would have completely conflicting results, none of which truly represents the complexity of the problem. Different from conducting a relatively precise and quantitative survey in scientific fields, which usually can calculate sampling error which may circumscribe the accuracy of sampling, social surveys have the inherited disadvantages in the credibility of deduction from the representative to the general.
In sum, conducting quantitative-general deduction is a helpful and economic method to acquire useful information if the informants are selectively chosen. Otherwise,inaccurate responses from the informants may inevitably mislead to a confused conclusion by deduction.
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