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What are quartiles?

April 26, 2017quartiles

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What are quartiles?

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Candidates must give the quartile that the journal appears in within the corresponding category of the JCR where it appears. For example, a journal appears in the Applied Physics category of the JCR. Journals are first put into decreasing order according to their impact index , with the first having the highest impact index and the last with the lowest impact index. In order to calculate the quartiles of a journal appearing, for example, in position 12 out of 100, the total number (100) is divided by 4. In this particular example, this means that each quartile is made up of 25 journals, with the first quartile comprising the journals from 1 to 25, the second from 26 to 50, the third from 51 to 75 and the fourth one from 76 to 100.