impact factor

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impact factor2016-12-25T14:04:54+00:00

impact factor


Definition A term of art referring to the relative value of a particular article published in a peer-reviewed medical or scientific journal, which has been defined as the number of current citations to articles published in a specific journal in a 2-year period, divided by the total number of articles published in the same journal in those 2 years.

Comment The Institute for Scientific Information stresses that a journal’s impact factor is a meaningful indicator only when considered in the context of similar journals covering a single field of investigation or subject discipline.  

Reference (link broken, now links to Thomson Reuters)

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