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Scholarly Publishing Resources for Faculty: Journal Citation Reports (Impact Factor, h-index)

Journal Citation Reports: Impact Factor

Journal Citation Reports (JCR) provides an analytical method for determining the quality of a particular scholarly journal compared to other journals in its field. JCR uses a ratio know as the impact factor to identify a journal's standing. For instance:

The 2010 impact factor of a journal would be calculated as follows:

  • A = the number of times articles published in 2008 and 2009 were cited by indexed journals during 2010
  • B = the total number of "citable items" published by that journal in 2008 and 2009.
  • 2010 impact factor = A/B
The h index
Expresses the journal's number of articles (h) that have received at least h citations. It quantifies both journal scientific productivity and scientific impact and it is also applicable to scientists, countries, etc.
  • Author’s total article count = 33
  • 18 of the articles are cited at least 18 times
  • h-index = 18