Navigate this libguide from the TOC below or the blue tabs (and sub-tabs) above.
Thomson Reuters recently introduced a vastly improved JCR user interface.
InCites Journal Citation Reports (JCR) provides data on over 8,000 journals in science and technology and 2,600 journals in the social sciences, some of which are relevant to humanities researchers. JCR ranks journals by compiling two-year's worth of citation data from the Web of Science (WOS) Core Collection indexes, but the data are drawn from only two of three citation databases: Science Citation Index and Social Sciences Citation Index. JCR provides no metrics for titles covered in Arts & Humanities Citation Index. For many important humanities journals, therefore, it is impossible to obtain proprietary JCR metrics such as Impact Factor, Immediacy Index, and Cited Half-Life. (See the Article Impact > Web of Science (WOS) sub-tab of this guide for more information about searching the three WOS citation databases, which are not currently licensed by Gitenstein Library but can be accessed by visiting Princeton's nearby Firestone Library.)
If available, however, the Impact Factor can serve as a useful metric for measuring a journal's impact on disciplinary debates and trends. The Impact Factor is a measure of how highly cited the average article published in a particular journal is relative to others in its discipline.
Follow these steps to search JCR for a journal's Impact Factor:
Thomson Reuters makes available several streaming video tutorials including a JCR Quick Tour and explanations of Impact Factor, Immediacy Index, and so on.
To reiterate, JCR cannot be relied on to provide data for many legitimate humanities journals. Highly-regarded titles such as Film History: An International Journal, are not covered by any of the three WOS citation indexes and therefore will not appear in JCR. For such titles it is impossible to obtain proprietary JCR metrics such as Impact Factor, Immediacy Index, and Cited Half-Life. Other critical humanities titles such as Civil War History and William and Mary Quarterly are covered by the Arts & Humanities Citation Index, but as indicated above cannot be found in JCR because JCR does not draw on Arts & Humanities Citation Index data. Given these drawbacks, I recommend TCNJ scholars consider incorporating Google Scholar Metrics and SCImago Journals Rankings into their journal impact analyses.
And finally, please consider the tenuousness of journal rankings. Promotion and tenure committee members looking to compare, say, two literary journals for relative impact should to some extent defer to literary scholars rather than statistical metrics such as Impact Factor and SJR Indicator. The same generally holds true across disciplines: when in doubt, consult disciplinary practitioners. For more information, see Using Journal Citation Reports Wisely (JCR Editions HELP).