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Impact factor

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What is Impact Factor?

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How to Calculate Journal Impact Factor Explained

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Calculating impact factor, hindex, i10.

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"I can categorically say I hate impact factors!" Nobel Laureate Martin Chalfie

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How to Find an Impact Factor

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.
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