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The simplest journal-level metric is the journal impact factor, the average number of citations that articles published by a journal in the previous two years have received in the current year, as calculated by Clarivate. Other companies report similar metrics, such as the CiteScore, based on Scopus.
the number of times articles published in the journal during each of the most recent 10 years were cited by individual specific journals during the year (the twenty journals with the greatest number of citations are given) and several measures derived from these data for a given journal: its impact factor, immediacy index, etc.
For example, in 2007, the specialist journal Folia Phoniatrica et Logopaedica, with an impact factor of 0.66, published an editorial that cited all its articles from 2005 to 2006 in a protest against the "absurd scientific situation in some countries" related to use of the impact factor. [44] The large number of citations meant that the impact ...
In any given year, the CiteScore of a journal is the number of citations, received in that year and in previous three years, for documents published in the journal during the total period (four years), divided by the total number of published documents (articles, reviews, conference papers, book chapters, and data papers) in the journal during the same four-year period: [3]
Journal of the Association for Information Science and Technology. Zuccala, A., Someren, M., & Bellen, M. (2014). A machine‐learning approach to coding book reviews as quality indicators: Toward a theory of megacitation. Journal of the Association for Information Science and Technology, 65(11), 2248–2260.
A journal's SJR indicator is a numeric value representing the average number of weighted citations received during a selected year per document published in that journal during the previous three years, as indexed by Scopus. Higher SJR indicator values are meant to indicate greater journal prestige.
The American Book Review was founded in 1977 by Ronald Sukenick. [6] According to author and essayist Raymond Federman, in his reading with American Book Review in 2007, Sukenick founded the American Book Review because The New York Times had stopped reviewing books by "that group labeled experimental writers", and Sukenick wanted to start a "journal where we can review books that everyone is ...
Journal Tier – One of the few indicators based not on citations but objective user ratings and reviews. [12] PageRank – in 1976 a recursive impact factor that gives citations from journals with high impact greater weight than citations from low-impact journals was proposed. [13]