A journal's impact factor is influenced by changes in publication delays of citing journals

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• 作者：Dongbo Shi ; Ronald Rousseau ; Liu Yang and Jiang Li
• 刊名：Journal of the American Society for Information Science and Technology
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：68
• 期：3
• 页码：780-789
• 全文大小：542K
• ISSN：1532-2890

文摘

In this article we describe another problem with journal impact factors by showing that one journal's impact factor is dependent on other journals' publication delays. The proposed theoretical model predicts a monotonically decreasing function of the impact factor as a function of publication delay, on condition that the citation curve of the journal is monotone increasing during the publication window used in the calculation of the journal impact factor; otherwise, this function has a reversed U shape. Our findings based on simulations are verified by examining three journals in the information sciences: the Journal of Informetrics, Scientometrics, and the Journal of the Association for Information Science and Technology.