Impact factor

Impact factor, Measure of mean number of citations per article of an academic journal.

The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly average number of citations of articles published in the last two years in a given journal. It is frequently used as a proxy for the relative importance of a journal within its field; journals with higher impact factor values are often deemed to be more important, or carry more intrinsic prestige in their respective fields, than those with lower values. History The impact factor was devised by Eugene Garfield, the founder of the Institute for Scientific Information (ISI). Impact factors are calculated yearly starting from 1975 for journals listed in the Journal Citation Reports (JCR). ISI was acquired by Thomson Scientific & Healthcare in 1992, and became known as Thomson ISI. In 2018, Thomson ISI was sold to Onex Corporation and Baring Private Equity Asia.

Citation impact
2 months ago

Citation impact ... specializing in the study of patterns of academic impact through citation analysis. The journal impact factor, the two-year average ratio of citations to articles...

Impact
4 months ago

Impact ... US Impact crater, a meteor crater caused by an impact event Impact event, the collision of a meteoroid, asteroid or comet with Earth Impact factor, a...

Cell (journal)
5 months ago

Cell (journal) ... According to the Journal Citation Reports, the journal has a 2019 impact factor of 38.637, ranking it first out of 298 journals in "Biochemistry & Molecular...

San Francisco Declaration on Research Assessment
4 months ago

San Francisco Declaration on Research Assessment ... Assessment (DORA) intends to halt the practice of correlating the journal impact factor to the merits of a specific scientist's contributions. Also according...

Journal of Biological Chemistry
5 months ago

Journal of Biological Chemistry ... of Biological Chemistry have criticized the modern reliance upon the impact factor for ranking journals, noting that review articles, commentaries, and...

4th Impact
4 months ago

4th Impact ... 2018). "4th Impact's Audition Tape for the X Factor Hits 100 Million Views". CelebMix. Retrieved 13 January 2018. "The X Factor UK". "X Factor: 4th Power...

Physical Review Letters
6 months ago

Physical Review Letters ... various measurement standards, which include the Journal Citation Reports impact factor and the journal h-index proposed by Google Scholar, many physicists...

CiteScore
5 months ago

CiteScore ... December 2016 by Elsevier as an alternative to the generally used JCR impact factors (calculated by Clarivate). CiteScore is based on the citations recorded...

The BMJ
6 months ago

The BMJ ... inappropriate use of journal impact factors and urges journal publishers to "greatly reduce the emphasis on the journal impact factor as a promotional tool,...

Advanced Materials
1 month ago

Advanced Materials ... According to the Journal Citation Reports, the journal has a 2019 impact factor of 27.398. The journal was established in 1988 as a supplement to the...

JAMA Network Open
4 months ago
Web of Science
1 month ago
Impact Wrestling
6 months ago
Webometrics
4 months ago
Scientometrics
6 months ago
Author-level metrics
4 months ago
Angewandte Chemie
4 months ago
Eigenfactor
4 months ago
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