Impact Factors, Journal Citation Reports
Impact factors are used by faculty to decide where to publish, by tenure and promotion committees to decide if faculty have published in important journals, and by librarians to decide which journals must be kept and which may be cut during hard times. The impact factor of a journal is supposed to tell us how often articles in it are cited, which is supposed to indicate how intensely and widely read the journal is. (The impact factor is calculated by looking at the number of articles cited this year/the number of “citeable items” that were published in the previous 2 years.)
However, librarians have discussed problems with the impact factor during the past several years. Depending on the field of study, citation patterns aren’t well captured by impact factors and journals with review articles are much more highly rated than journals that only include research articles.
A good article is at Wired: http://www.wired.com/culture/geekipedia/magazine/17-06/mf_impactfactor
Other articles:
(2009). Is Impact Factor True Evaluation for Ranking Quality Measure?. DESIDOC Journal of Library & Information Technology, 29(3), 55-8. Retrieved 27 July 2009, from Library Lit & Inf Full Text database.
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