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Selected Works of Ted C Bergstrom
Article
Differences in Impact Factor Across Fields and Over Time
Journal of the American Society for Information Science and Technology (2008)
  • Benjamin M. Althouse, University of Washington
  • Jevin D. West, University of Washington
  • Ted C Bergstrom, University of California, Santa Barbara
  • Carl T. Bergstrom, University of Washington
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Abstract

The impact factor of an academic journal for any year is the number of times the average article published in that journal in the previous two years are cited in that year. From 1994-2005, the average impact factor of journals listed by the ISI has been increasing by an average of 2.6 percent per year. This paper documents this growth and explores its causes.

Keywords
  • academic journals,
  • citations,
  • impact factor
Disciplines
Publication Date
August 21, 2008
Citation Information
Benjamin M. Althouse, Jevin D. West, Ted C Bergstrom and Carl T. Bergstrom. "Differences in Impact Factor Across Fields and Over Time" Journal of the American Society for Information Science and Technology Vol. 60 Iss. 1 (2008)
Available at: http://works.bepress.com/ted_bergstrom/79/