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Measure Your Research Impact: Journal Impact

Learn how to measure the impact of your research.

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Learn how to find journal Impact Factors, Eigenfactors and more

Need Help?

Contact the Health and Natural Sciences Team

sciencehelp@listserv.unc.edu

 

Health and Natural Sciences Team 2014-15

The Health and Natural Sciences Team is composed of librarians from the Health Sciences and Kenan Science Libraries.

How Can I Assess Journal Impact?

Different measures are used to assess the quality and impact of a journal.  These measures are one factor to consider when deciding where to publish your work. 

See the chart below to find out more about measures of journal impact.  Click on the links in the box to the left to find out how to get these measures.

Common Measures of Journal Impact

 

  Impact Factor (IF) Eigenfactor SCImago Journal Ranking (SJR) Source Normalized Impact per Paper (SNIP)
Measure of... Frequency with which the 'average article' in a journal has been cited in a particular year or other defined time period Measure of importance: overall value provided by all articles published in a a journal in one year Measure of prestige; accounts for number of citations received by a journal and importance of the journals that citations came from Measures citation impact by weighting citations based on the total number of citations in a subject field
Calculation A: Number of citations in the current year to items published in the journal in the previous two years
B: Total number of articles published in the journal in the previous two years
Impact Factor = A/B
Citations from high-quality journals are weighted more than citations from lesser known journals
 

Citations from more prestigious journals (higher SJR) weighted more than citations from less prestigious journals (lower SJR)
Citations from subject fields in which citations are less likely are weighted more
Can it be used to compare journals from different disciplines? No Yes Yes Yes
Where can I get it? Journal Citation Reports Journal Citation Reports OR free from Eigenfactor.org Scopus OR free from SCImago Journal & Country Rank Scopus OR free from CWTS Journal Indicators

Journal Citation Reports

Journal Citation ReportsJournal Citation Reports (JCR) is a resource for evaluating and comparing journals.  Published annually in two editions: JCR Science Edition and JCR Social Sciences Edition.  Provides journal Impact Factor and Eigenfactor, along with other metrics, for more than 10,500 journals.

Find Impact Factor and Eigenfactor

For a single journal:

  • Select the the JCR Science or Social Sciences Edition and year (usually, the most current year is desired)
  • Select 'Search for a specific journal' and click Submit.  You will be taken to a new page.
  • From the drop down menu, choose how you would like to search for the journal (by full title, abbreviated title or title word)
  • Enter the information for the journal in the search box and click Search
  • If you are having trouble finding the journal, try searching by Title Word or, try the other JCR Edition

For a group of journals:

  • Select the the JCR Science or Social Sciences Edition and year (usually, the most current year is desired)
  • Select 'View a group of journals by' and choose Subject Category, Publisher or Country/Territory from the drop down menu
  • On the new page, select the categories (or publishers or country) for which you would like to view a group of journals
  • Next, choose whether you would like to view data for individual journals or aggregate data for the categories and click Submit

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Scopus

ScopusScopus is a resource for evaluating and comparing journals.  Provides SCImago Journal Ranking (SJR) and Source Normalized Impact per Paper (SNIP) for more than 19,000 journals.

The Journal Analyzer feature in Scopus can be used to view and compare the following metrics for up to 10 journals at a time:

  • SJR
  • SNIP
  • Number of citations received in a year
  • Number of documents published in a year
  • Percentage of documents published in a year that have never been cited
  • Percentage of articles that are review articles

Find SJR and SNIP

  • To access the Journal Analyzer, click on the Analyze Journals above the search box on the Scopus homepage
  • Enter a journal title or title word in the search box on the Journal Analyzer page (do not use the Quick Search box at the top of the page)
  • You can limit by subject area; this is helpful if you have entered a single word in the search box and want to view a list of journals for a particular subject area
  • Choose whether you would like to view the SJR or the SNIP (it does not matter which one you choose because you can easily access all metrics once the journal is located)
  • Click search.  Once you locate the journal, double-click on the title to view metrics for that journal.  To add additional journals to the chart, repeat the search process.
  • By default, metrics are displayed in a line chart.  To change the display, click on the Table link at the top of the chart.

Scopus Homepage

Scopus Analyze Journals

Journal Analyzer with Search Box and Display Type Highlighted

Scopus Journal Analyzer

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