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2012 data now available in Journal Citation Reports


   

ISI Web of Science


June 19, 2013 – 2012 data has now been loaded into JCR - Journal Citation Reports from Thomson Web of Science . Journal Citation Reports allows you to evaluate and compare journals using citation data drawn from over 11,000 scholarly and technical journals from more than 2,500 publishers. 379 journals received their first impact factors in this edition. Additionally, 33 journals were suppressed due to questionable citation activity. Suppressions aim to ensure the integrity of the reports; suppressed journals are re-evaluated after two-years for re-consideration in the JCR.

JCR can show you the most frequently cited journals in a field, highest impact journals in a field, and largest journals in a field. Search or browse in JCR Science Edition or JCR Social Sciences Edition.

Expanded metrics and features

  • 5-Year Journal Impact Factor is the average number of times articles from a journal published in the past five years have been cited in the JCR year. For journals in subjects where citation activity continues to rise through several years, this metric allows more of their total citation activity to be included in a critical performance metric.
  • Eigenfactor Metrics, comprising the Eigenfactor Score and Article Influence Score, use JCR citation data to assess the influence of a journal in relation to other journals. These metrics, based on five years of citation activity, consider not just the count of citations but the structure of the citation network. Eigenfactor Metrics are available only for JCR years 2007 and later.
  • Journal Self Cites provides analyses of journal self citations and their contribution to the Journal Impact Factor calculation.
  • Rank-in-Category reveals the ranking of a journal in its subject categories based on the Journal Impact Factor. An accompanying Impact Factor box plot depicts the distribution of Impact Factors for all journals in a category.

How to cite JCR

When citing Journal Citation Reports, be sure to include the following information:

  • The JCR data year that you are referencing.
  • The full name, Journal Citation Reports. Include the registered trademark symbol.
  • The edition: Science Edition or Social Sciences Edition. (The edition is not essential.)
  • Name of the publisher, Thomson Reuters.
  • Copyright year. The copyright year appears at the bottom of every page in JCR.
Examples
  • 2008 Journal Citation Reports® Science Edition (Thomson Reuters, 2009)
  • 2007 Journal Citation Reports® Social Sciences Edition (Thomson Reuters, 2008)
  • 2005 Journal Citation Reports® (Thomson Reuters, 2006)

Thompson provides screencasts of training sessions online about recent JCR enhancements, how Impact Factors are calculated, and the Immediency Index.



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