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Analysis of the new scopus CiteScore

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  • Hui Fang

    (Nanjing University)

Abstract

This study analyzes the new version of CiteScore. Because the formula used to calculate the new CiteScore contains more items representing early citations, it has a bias in favor of journals that have high proportion of early citations within 4 years after publication. Similarly, the formula to calculate the CiteScore of year Y contains more items representing the citations received by eligible documents (EDs) published by a journal in Y − 3. Therefore, new CiteScore of year Y is more affected by the impact of the EDs published in Y − 3 than by the impact of the EDs published in Y − 2, than in Y − 1, and than in Y. Moreover, the impact of the EDs published in Y − 3 more heavily influences the CiteScore of Y than the traditional JIF of Y with the citation window expanded so that it covers Y − 3 to Y. The above properties of new CiteScore are proved with some simplifying assumptions because a strict proof is difficult. Examples that demonstrate these properties are also provided. Finally, a suggestion is given to improve the rationality of the journal impact indexes.

Suggested Citation

  • Hui Fang, 2021. "Analysis of the new scopus CiteScore," Scientometrics, Springer;Akadémiai Kiadó, vol. 126(6), pages 5321-5331, June.
    • Handle: RePEc:spr:scient:v:126:y:2021:i:6:d:10.1007_s11192-021-03964-5
    DOI: 10.1007/s11192-021-03964-5
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    References listed on IDEAS

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    1. Liu, Xuan Zhen & Fang, Hui, 2020. "A comparison among citation-based journal indicators and their relative changes with time," Journal of Informetrics, Elsevier, vol. 14(1).
    2. Hilary I. Okagbue & Jaime A. Teixeira da Silva & Abiodun A. Opanuga, 2020. "Disparities in document indexation in two databases (Scopus and Web of Science) among six subject domains, and the impact on journal-based metrics," Scientometrics, Springer;Akadémiai Kiadó, vol. 125(3), pages 2821-2825, December.
    3. Waltman, Ludo, 2016. "A review of the literature on citation impact indicators," Journal of Informetrics, Elsevier, vol. 10(2), pages 365-391.
    4. Hui Fang, 2020. "Investigating the journal impact along the columns and rows of the publication-citation matrix," Scientometrics, Springer;Akadémiai Kiadó, vol. 125(3), pages 2265-2282, December.
    5. Wolfgang Glänzel & Balázs Schlemmer & Bart Thijs, 2003. "Better late than never? On the chance to become highly cited only beyond the standard bibliometric time horizon," Scientometrics, Springer;Akadémiai Kiadó, vol. 58(3), pages 571-586, November.
    6. Jerome K. Vanclay, 2009. "Bias in the journal impact factor," Scientometrics, Springer;Akadémiai Kiadó, vol. 78(1), pages 3-12, January.
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    Cited by:

    1. Mina Moradzadeh & Shahram Sedghi & Sirous Panahi, 2023. "Towards a new paradigm for ‘journal quality’ criteria: a scoping review," Scientometrics, Springer;Akadémiai Kiadó, vol. 128(1), pages 279-321, January.
    2. Hui Fang, 2023. "A modification of citation-based journal indexes," Scientometrics, Springer;Akadémiai Kiadó, vol. 128(2), pages 1119-1132, February.
    3. Lang Jia & Wenjuan Wang & Francis Zvomuya & Hailong He, 2024. "Trends in Soil Science over the Past Three Decades (1992–2022) Based on the Scientometric Analysis of 39 Soil Science Journals," Agriculture, MDPI, vol. 14(3), pages 1-32, March.

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