The 5-year synchronous impact factor for large Journal Citation Reports (JCR) subject areas

The STIMULATE 9, Group The 5-year synchronous impact factor for large Journal Citation Reports (JCR) subject areas. Cybermetrics: International Journal of Scientometrics, Informetrics and Bibliometrics, 2009, vol. 13, n. 1. [Journal article (Unpaginated)]

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English abstract

Using the largest JCR Thomson Reuters subject areas it is shown that the two-year and the five-year impact factor of journals lead statistically to the same ranking per category. This observation holds for top journals as well as lower level journals. Yet in a majority of cases the 5-year impact factor is larger than the 2-year one. A special case was observed in which one article influenced macro statistics of a whole journal subject category.

Item type: Journal article (Unpaginated)
Keywords: synchronous impact factors, journal rankings, Wilcoxon matched-pairs signed-ranks test
Subjects: B. Information use and sociology of information > BB. Bibliometric methods
Depositing user: Stephen Alayon
Date deposited: 03 May 2010
Last modified: 02 Oct 2014 12:16
URI: http://hdl.handle.net/10760/14486

References

Della Sala, S. and Grafman, J. (2009). Five-year impact factor. Cortex, 45, 911.

Egghe, L. & Rousseau, R. (1990). Introduction to Informetrics. Amsterdam: Elsevier.

Franceschet, M. (2010). The difference between popularity and prestige in the sciences and in the social sciences: a bibliometric analysis. Journal of Informetrics. 4(1), 55-63

Garfield, E. (1998a). Long-term vs. short-term journal impact: does it matter? The Scientist, 12(3), 11-12.

Garfield, E. (1998b). Long-term vs. short-term impact: Part II. Cumulative impact factors. The Scientist, 12(14), 12-13.

Jacsó, P. (2009). Five-year impact factor data in the Journal Citation Reports. Online Information Review, 33(3), 603-614.

Leydesdorff, L. (2009). How are new citation-based journal indicators adding to the bibliometric toolbox? Journal of the American Society for Information Science and Technology, 60(7), 1327-1336.

Liang, L. & Rousseau, R. (2008). Yield sequences as journal attractivity indicators: "payback times" for Science and Nature. Journal of Documentation, 64(2), 229-245.

Rousseau, R. (2002). Journal evaluation: technical and practical issues. Library Trends, 50(3), 418-439.

Rousseau, R. (2009). What does the Web of Science five-year synchronous impact factor have to offer? Chinese Journal of Library and Information Science, 2(3), 1-7.

Rousseau, R. and the STIMULATE 8 Group (2009). On the relation between the WoS impact factor, the Eigenfactor, the SCImago Journal Rank, the Article Influence Score and the journal h-index. Available at E-LIS archive, ID: 16448; http://eprints.rclis.org/16448/

Sheskin, D.J. (2007). Handbook of Parametric and Nonparametric Statistical Procedures. Boca Raton (FL): Chapman & Hall.

STIMULATE 4 Group (2005). Impact of African journals in ISI databases. Libres, 15(2). http://libres.curtin.edu.au/libres15n2/RousseauFinal.htm

STIMULATE 6 Group (2007). The Hirsch index applied to topics of interest to developing countries. First Monday, 12(2)http://www.firstmonday.org/issues/issue12_2/stimulate/

STIMULATE 8 Group (2009). The Web of Knowledge versus Google Scholar: presence of non-Western countries. ISSI Newsletter, 5(1), (2009), p. 3-6.


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