Impact Factor and Immediacy Index
loet at LEYDESDORFF.NET
Wed Mar 15 01:34:01 EST 2006
In reaction to my posting last week with the figures in which the Impact
Factor, the c/p ratio, and the Immediacy Index were grouped together as a
single component, someone noted a previous publication by
Weiping Yue, Concepsion S. Wilson, and Ronald Rousseau, "The Immediacy Index
and the Journal Impact Factor: Two Highly Correlated Derived Measures," The
Canadian Journal of Information and Library Science, 28(1) (2004) 33-48.
The authors argue that the II can be used as a predictor for the IF in the
next year because they are correlated.
With best wishes,
Amsterdam School of Communications Research (ASCoR)
Kloveniersburgwal 48, 1012 CX Amsterdam
Tel.: +31-20- 525 6598; fax: +31-20- 525 3681
<mailto:loet at leydesdorff.net> loet at leydesdorff.net ;
<http://www.leydesdorff.net/knbecon> The Knowledge-Based Economy: Modeled,
Measured, and Simulated
The Self-Organization of the Knowledge-Based Society;
The Challenge of Scientometrics
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