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Introduction In earlier studies, criticism on Journal Impact Factors was centered around a number of key problems when it comes to the famous Journal Impact Factors, produced annually by Thomson Reuters in their Journal

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journals (currently more than 8,200 journals from more than 3,300 publishers in 60 countries) are listed in the JCR with a series of bibliometric data and indicators (e.g., total citations, Journal Impact Factor (JIF), Journal Immediacy Index, Journal Cited

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Introduction The journal impact factor, also generically named the Garfield Index and in its ISI/Thomson Reuters form as TRIF by Vanclay ( 2012 ), should ideally serve several purposes to the scientific community. It should

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usually do not match with the number of citations used by Thomson Reuters to compute the Impact Factor. A research program on this topic could consist of an extensive evaluation of the differences between the Journal Impact Factor computed using citation

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Abstract  

This article introduces the Impact Factor squared or IF2-index, an h-like indicator of research performance. This indicator reflects the degree to which large entities such as countries and/or their states participate in top-level research in a field or subfield. The IF2-index uses the Journal Impact Factor (JIF) of research publications instead of the number of citations. This concept is applied to other h-type indexes and their results compared to the IF2-index. These JIF-based indexes are then used to assess the overall performance of cancer research in Australia and its states over 8 years from 1999 to 2006. The IF2-index has three advantages when evaluating larger research units: firstly, it provides a stable value that does not change over time, reflecting the degree to which a research unit participated in top-level research in a given year; secondly, it can be calculated closely approximating the publication date of yearly datasets; and finally, it provides an additional dimension when a full article-based citation analysis is not feasible. As the index reflects the degree of participation in top-level research it may favor larger units when units of different sizes are compared.

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Impact, and a journal impact factor People who use literature databases have two principal purposes. One, the original and still the primary function of citation indices and a core part of research practice, is to find

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Journal impact factors (JIFs), which are calculated by Thomson Reuters (Philadelphia, PA, USA), are one of the most important indicators in evaluative bibliometrics. They are used in the scientific community as a basis for decision making on

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Introduction: Background Soon after bibliometric measures based on citation appeared, and first of all the Journal Impact Factor (Garfield 1972 ), it was recognized that these measures were dependent to disciplinary effects

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Introduction One of the most commonly used and prominent citation-based indicators of the performance and significance of a scientific journal is the journal impact factor (JIF), which was introduced in 1955 by Garfield ( 1999

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Introduction J.K. Vanclay's 1 recent article Vanclay ( 2011 ) on the journal impact factor (JIF) is a new occasion to debate about the commander's statue in bibliometrics. The statue is still standing in spite of injuries from

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