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5-day online FDP on Applied Statistical Data Analysis using SPSS; Date: 08 to 12 Sept 2025; Organizer: SSSIHL, Bengaluru
The impact factor (IF) of an academic journal is obtained from Journal Citation Reports (JCR) by Clarivate (formerly part of Thomson Reuters) 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.
Journal Impact Factor (JIF) is calculated by Clarivate Analytics as the average of the sum of the citations received in a given year to a journal’s previous two years of publications (linked to the journal, but not necessarily to specific publications) divided by the sum of “citable” publications in the previous two years. Owing to the way in which citations are counted in the numerator and the subjectivity of what constitutes a “citable item” in the denominator, JIF as received sustained criticism for many years for its lack of transparency and reproducibility and the potential for manipulation of the metric. Available for only 11,785 journals (Science Citation Index Expanded plus Social Sciences Citation Index, per December 2019), JIF is based on an extract of Clarivate’s Web of Science database, and includes citations that could not be linked to specific articles in the journal, so-called unlinked citations.
As the Impact Factor is derived from journals indexed in the Web of Science (another product of Clarivate Analytics), other journals cannot have an Impact Factor.
CiteScore is a journal metric launched by Elsevier in December 2016. In any given year, the CiteScore of a journal is the number of citations, received in that year and in previous three years, for documents published in the journal during the total period (four years), divided by the total number of published documents (articles, reviews, conference papers, book chapters, and data papers) in the journal during the same four-year period.
Powered by Scopus and its 28,100+ active titles from 7000+ publishers across 333 disciplines, CiteScore provides transparent metrics that enable well-informed publishing strategy, library collection development and benchmarking of journal performance. More titles are being frequently added and tracked, with the freely available metrics.
The two companies already have competing bibliographical citation databases in Scopus (Elsevier) and the Web of Science (Clarivate Analytics).
Source:
https://beta.elsevier.com/authors/tools-and-resources/measuring-a-journals-impact
https://service.elsevier.com/app/answers/detail/a_id/30562/supporthub/scopus/related/1/
https://www.elsevier.com/solutions/scopus/how-scopus-works/metrics/citescore
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