Title
Averages of impact factors Averages of impact factors
Author
Faculty/Department
Faculty of Social Sciences. Instructional and Educational Sciences
Publication type
article
Publication
Pretoria ,
Subject
Documentation and information
Source (journal)
South African journal of library and information science. - Pretoria
Volume/pages
73(2007) :1 , p. 84-89
ISSN
0256-8861
Carrier
E
Target language
English (eng)
Affiliation
University of Antwerp
Abstract
It is shown that the ratio of the harmonic mean of citations over the harmonic mean of publications does not lead to an acceptable impact measure for a meta-journal. This result contrasts markedly with the corresponding cases in which the arithmetic or geometric average is used. The relation between different averages and the regression of impact over publications or the regression of the opposite of impact over the opposite of publication numbers is studied in some detail. This leads to the general observation that if the regression line of y over x has a positive slope then this is not necessarily true for the regression line of I/y over I/x.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/eae13a/100508f1.pdf
Handle