skewed citation distributions should not be averaged
loet at LEYDESDORFF.NET
Wed Aug 31 02:10:13 EDT 2011
A Rejoinder on Energy versus Impact Indicators
Scientometrics (in press)
Citation distributions are so skewed that using the mean or any other
central tendency measure is ill-advised. Unlike G. Prathap's scalar measures
(Energy, Exergy, and Entropy or EEE), the Integrated Impact Indicator (I3)
is based on non-parametric statistics using the (100) percentiles of the
distribution. Observed values can be tested against expected ones; impact
can be qualified at the article level and then aggregated.
pdf available at http://arxiv.org/ftp/arxiv/papers/1108/1108.5845.pdf
** apologies for cross postings
Professor, University of Amsterdam
Amsterdam School of Communications Research (ASCoR)
Kloveniersburgwal 48, 1012 CX Amsterdam.
Tel. +31-20-525 6598; fax: +31-842239111
<mailto:loet at leydesdorff.net> loet at leydesdorff.net ;
Visiting Professor, <http://www.istic.ac.cn/Eng/brief_en.html> ISTIC,
Beijing; Honorary Fellow, <http://www.sussex.ac.uk/spru/> SPRU, University
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