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Journal Impact Factor (JIF)

The impact factor (IF) or journal impact factor (JIF) of an academic journal is a measure reflecting the yearly average number of citations to recent articles published in that journal. It is frequently used as a proxy for the relative importance of a journal within its field; journals with higher impact factors are often deemed to be more important than those with lower ones. The impact factor was devised by Eugene Garfield, the founder of the Institute for Scientific Information. Impact factors are calculated yearly starting from 1975 for journals listed in the Journal Citation Reports.

journal impact factor (JIF)

Impact factor of Scopus indexed journals

Scopus indexed journals give SJR or H index, Scopus is not longer using the Impact factor of Thomson-Reuters. They introduced last December the new CiteScore journal metric. This is a new metric computed as 
CiteScore = Number of citation in 2018 / (number of documents from 2013 to 2017)

The CiteScore gives in general a number higher than the Impact Factor.

All Elsevier journals indicate their impact factor if it exists on the journal's web  page.  visit this search engine that allows you to know the IF.

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