Scientometrics
Volume/Issue:
Volume 63: Issue 2
Characteristics of journal impact factors: The effects of uncitedness and citation distribution on the understanding of journal impact factors
Authors:
Thed N. van Leeuwen Centre for Science & Technology Studies (CWTS), Leiden University Leiden, The Netherlands

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Henk F. Moed Centre for Science & Technology Studies (CWTS), Leiden University Leiden, The Netherlands

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Pages:
357–371
Online Publication Date:
09 May 2005
Publication Date:
01 Apr 2005
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s11192-005-0217-z
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Summary In this study, journal impact factors play a central role. In addition to this important bibliometric indicator, which evolves around the average impact of a journal in a two-year timeframe, related aspects of journal impact measurement are studied. Aspects like the output volume, the percentage of publications not cited, and the citation frequency distribution within a set timeframe are researched, and put in perspective with the 'classical' journal Impact Factor. In this study it is shown that these aspects of journal impact measurement play a significant role, and are strongly inter-related. Especially the separation between journals on the basis of the differences in output volume seems to be relevant, as can be concluded from the different results in the analysis of journal impact factors, the degree of uncitedness, and the share of a journal its contents above or below the impact factor value.

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Cover Scientometrics
Scientometrics
Print ISSN:
0138-9130
Online ISSN:
1588-2861

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Scientometrics
Language English
Size B5
Year of
Foundation		 1978
Volumes
per Year		 1
Issues
per Year		 12
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0138-9130 (Print)
ISSN 1588-2861 (Online)

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