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LIBRARY 

Effective Database Searching: SCImago Journal Rank (SJR)

This guide to key library databases helps you decide which databases to use and assists you in searching them more effectively.

SCImago Journal Rank (SJR)

SCImago Journal Rank (SJR) is a tool used for measuring the value of citations based on journal esteem and influence.  Developed by Félix de Moya, SJR evaluates the quality and reputation of journals by subject field in dertermining the value of citations over a 3 year period.  It goes a step beyond the journal impact factor by assigning a higher value to citations from more presitigious journals (somewhat like the way Google ranks webpages its search results).

A journal's SJR calculation for 2010 would be:

Year 2010 weighted citations to 2009+2008+2007 articles
  ________________________________________________
Total number of articles published in 2009+2008+2007

 

SJR
- Is weighted by a journal's reputation which more evenly "levels the playing field" among journals
- Takes into account a journal's total number of citations
- Adjusts for differences in citation patterns between disciplines
- Reduces editorial manipulation from self-citations
- Journal coverage is broad (including social sciences)

Note: New SJR values are updated twice yearly in Scopus.

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