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Screening method of network information
The principle of authority refers to authoritative sources, such as authoritative scholars, authoritative academic journals, official government websites, etc. In the case of 1, the speeches made by Robert, the leader of WHO expert group and an epidemiologist, and Zhong Nanshan, an academician of Chinese Academy of Sciences, and the reports of the world authoritative magazine Science are authoritative.
The principle of multi-channel repeatability means that multiple channels transmit the same information. For example, many authoritative scholars in different disciplines independently test and get the same information, so they have multiple reliability. In the case of 1, many epidemiologists think so, and many virologists think so according to gene sequencing, so the information has double reliability.
The principle of timeliness refers to the time effectiveness of information release. For example, the information released by authoritative sources recently is more reliable than the information released for the same problem before. In case two, the data released by WWF in February 2003 is more reliable than the statistics of scientists in June 2000.
Logical principle refers to the use of comparison and classification, analysis and synthesis, abstraction and generalization, induction and deduction and other logical methods to draw reasonable conclusions from known facts. In the case of 1, vendors and breeders of wild animals and the first batch of people infected with SARS all had contact history with civets, so it can be inferred that civets are related to SARS virus.
The principle of positivism means that all conclusions should be provided with conclusive evidence by scientific experiments. In the case of 1, both the Shanghai Institute of Life Sciences and the deputy head of the Guangdong SARS medical treatment expert group raised questions, but they were not credible because there was no evidence.
The principle of representativeness means that China Agricultural University has not found SARS-like virus in 76 civets, which does not mean that all civets are not virus carriers.
For the six principles, some are necessary, while others are not necessarily at the same time.
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