Jump to content

Journal Citation Reports

From Wikipedia, the free encyclopedia

Journal Citation Reports (JCR) is an annual publication by Clarivate.[1] It has been integrated with the Web of Science and is accessed from the Web of Science Core Collection. It provides information about academic journals in the natural and social sciences, including impact factors. JCR was originally published as a part of the Science Citation Index. Currently, the JCR, as a distinct service, is based on citations compiled from the Science Citation Index Expanded and the Social Sciences Citation Index.[2] As of the 2023 edition, journals from the Arts and Humanities Citation Index and the Emerging Sources Citation Index have also been included.[3]

Basic journal information[edit]

The information given for each journal includes:

  • the basic bibliographic information of publisher, title abbreviation, language, ISSN
  • the subject categories (there are 254 subject categories in the 2022 edition)[4]

Citation information[edit]

  • Basic citation data:
    • the number of articles published during that year and
    • the number of times the articles in the journal were cited during the year by later articles in itself and other journals,
  • detailed tables showing
    • the number of times the articles in the journal were cited during the year by later articles in itself and other journals,
    • the number of citations made from articles published in the journal that year to it and other specific individual journals during each of the most recent ten years (the 20 journals most cited are included)
    • the number of times articles published in the journal during each of the most recent 10 years were cited by individual specific journals during the year (the twenty journals with the greatest number of citations are given)
  • and several measures derived from these data for a given journal: its impact factor, immediacy index, etc.

There are separate editions for the sciences and the social sciences; the 2013 science edition includes 8,411 journals, and the 2012 social science edition contains 3,016 titles. The issue for each year is published the following year after the citations for the year have been published and the information processed.

The publication is available online (JCR on the Web), or in CD format (JCR on CD-ROM); it was originally published in print, with the detailed tables on microfiche.

In general, various universities, administrative centers and ministries in charge of higher education make their evaluations of university professors and other researchers on the number and quality of articles published in journals indexed in the JCR.[5]

Release schedule[edit]

In recent years, it has often been released in mid-June. The 2017 Journal Citation Reports, based on 2016 data, was released on June 14, 2017.[6]


In April 2020, Journal Citation Reports included a beta for open access data, which uses Unpaywall data.[7] It officially left the beta phase with the release of the 2020 JCR in June 2020.[8][9]

Impact factor[edit]

The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as indexed by Clarivate's Web of Science.

As a journal-level metric, it is frequently used as a proxy for the relative importance of a journal within its field; journals with higher impact factor values are given the status of being more important, or carry more prestige in their respective fields, than those with lower values.

While frequently used by universities and funding bodies to decide on promotion and research proposals, it has been criticised for distorting good scientific practices.[10][11][12]

See also[edit]



  1. ^ Ramakrishnan, RamaRavikumar. "LibGuides: Journal Citation Report : Getting Started: Home". libguides.ntu.edu.sg. Retrieved 2023-04-26.
  2. ^ Garfield, Eugene (2007). "The evolution of the Science Citation Index" (PDF). International Microbiology. 10 (1): 65–69. doi:10.2436/20.1501.01.10. PMID 17407063.
    - "Overview". Journal Citation Reports. Thomson Reuters. 2010. Archived from the original on 25 June 2010. Retrieved 25 June 2010.
    - "About Us". Thomson Reuters. 2010. Archived from the original on 1 January 2011. Retrieved 25 June 2010.
    - Venkatraman, Archana (September 2009). "Journals cherish IF status symbol: but impact factor is not the only citation metric that matters". Information World Review: 7.
  3. ^ Quaderi, Nandita (2022-07-26). "Announcing changes to the 2023 Journal Citation Reports". Clarivate. Retrieved 2023-04-17.
  4. ^ "Journal Citation Reports". Clarivate. Retrieved 2023-04-17.
  5. ^ admin. "La investigación dependiente: crítica estructural al sistema JCR | Ámbitos. Revista Internacional de Comunicación" (in Spanish). Retrieved 2022-09-27.
  6. ^ "The 2017 JCR Release is Here! – Clarivate". 14 June 2017. Archived from the original on 12 June 2018. Retrieved 11 June 2018.
  7. ^ "Journal Citation Reports: Open access data beta" (PDF). 2020-04-01.
  8. ^ "Journal Citation Reports to feature open access data". Research Information. 2020-04-23. Archived from the original on 2020-08-12. Retrieved 2024-06-22. The new feature is in beta until the launch of the 2020 Journal Citation Reports in June.
  9. ^ "Clarivate Introduces New Open Access Data into Web of Science Journal Citation Reports". Clarivate. 2020-04-22. Archived from the original on 2024-06-22. Retrieved 2024-06-22. The new feature is in beta until the launch of the 2020 Journal Citation Reports in June.
  10. ^ Waltman, Ludo; Traag, Vincent Antonio (2021-03-01). "Use of the journal impact factor for assessing individual articles: Statistically flawed or not?". F1000Research. 9: 366. doi:10.12688/f1000research.23418.2. PMC 7974631. PMID 33796272.
  11. ^ Curry S (February 2018). "Let's move beyond the rhetoric: it's time to change how we judge research". Nature. 554 (7691): 147. Bibcode:2018Natur.554..147C. doi:10.1038/d41586-018-01642-w. PMID 29420505.
  12. ^ Hutchins, BI; Yuan, X; Anderson, JM; Santangelo, GM (September 2016). "Relative Citation Ratio (RCR): A New Metric That Uses Citation Rates to Measure Influence at the Article Level". PLOS Biology. 14 (9): e1002541. doi:10.1371/journal.pbio.1002541. PMC 5012559. PMID 27599104.


External links[edit]