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Choosing a Journal for Publication of an Article: Impact Factor Calculation

This guide features information resources useful for identifying major journals in all fields and details about them for those wanting to identify key journals or find publication details for known journal titles.

Summary of Impact Factor Calculation

From Thomson Reuters http://thomsonreuters.com/products_services/science/free/essays/impact_factor 

 

A = total cites in 1992

 

B = 1992 cites to articles published in 1990-91 (this is a subset of A)

 

C = number of articles published in 1990-91

 

D = B/C = 1992 impact factor 

Science Research Support Librarian - Life Sciences

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Lori Bronars
Contact:
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Yale University

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