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Journal Impact Factor
The Impact Factor is a measure of the frequency in which the "average article" from a particular journal has been cited in a given period of time. It is one way scholars measure the relative importance of a journal within its field.
Use InCites Journal Citation Reports (JCR) to locate Journal Impact Factors and JIF quartile rankings.
Journal Quartile Rankings
Journal quartile rankings are calculated by the JIF of the journal and dividing it by the number journals in that category to find x. They are then distributed among as follows:
Q1: 0.0 < x ≤ 0.25
Q2: 0.25 < x ≤ 0.5
Q3: 0.5 < x ≤ 0.75
Q4: 0.75 <x
When searching in Web of Science, hover over the journal title in the results list or item record to view the journal's quartile ranking
Image from University of Denver Libraries
InCites Journal Citation Reports (JCR)
Journal Citation Reports evaluates journals based on citation data. It measures research influence and calculates impact factor at the journal and category levels and shows the relationship between citing and cited journals. Available in Science and Social Sciences editions.
JCR can show you the:
- Most frequently cited journals in a field
- Highest impact journals in a field
- see the Journal Impact Factor tab for more information
- Issue table of contents and article links
Search by Category
- Go to InCites Journal Citation Reports (JCR) and select Browse by Category .
- Click Select Categories at the left. Select the category that best matches your discipline.
- Once the center list is populated, click the number in the #journals column to view journal titles. Journal titles are sorted by Impact Factor.
Browse Table of Contents & Issues
- Follow the above steps to locate journals within a category.
- Click a title to access the journal profile.
- Select the Go to Journal Table of Contents link.
Measuring the Importance of Journals and Articles
Journal Citation Reports
Journal Citation Reports® offers a means to critically evaluate the world's leading journals based on citation data. By compiling articles' cited references, JCR helps to measure research influence and impact at the journal and category levels, and shows the relationship between citing and cited journals. Includes Journal Impact Factor, Eigenfactor, and Article Influence Score.
This web source is used to evaluate journal titles; it ranks and maps scientific knowledge. Eigenfactor includes Article Influence scores which are calculated based on per article citations and assigns Eigenfactor Scores which are a measure of the journal's value for a year. Use the scientific browser to find key journals in a specific field of study.
Altmetric Top 100
The Altmetric Top 100 is an annual list of the research that has most captured the public’s imagination each year, based on metrics and qualitative data.
A peer-reviewed open-access journal published by the Public Library of Science. Includes articles, essays and book reviews addressing biological science. Article level metrics (article views) are included in each article record.
Journal of Medical Internet Research
JMIR focuses on emerging technologies in health, medicine, and biomedical research. It includes studies and applications of mobile technologies and social media which often use the Internet as an underlying technology. JIMR provides article level metrics including most viewed, most cited, most tweeted and most purchased.
Ulrichsweb Global Serials Directory
Profiles nearly a quarter of a million consumer and trade magazines, academic and scholarly publications, monographic series, newsletters, newspapers, electronic publications, 'zines, and many other types of serial publications on all subjects.
Author Impact Metrics
Author-level metrics attempt to measure the impact of individual authors. While there are many different indicators for measuring author-impact, the two commonly used metrics are:
- the H-index: number of papers (h) with a citation number ≥ h
- i10-index: the number of publications with at least 10 citations
H-index: number of papers (h) with a citation number ≥ h
- Can be found by doing an author search in Web of Science and selecting Create Citation Report.
i10-index: the number of publications with at least 10 citations
- Created by Google Scholar; located in a researcher's GoogleScholar Author Profile