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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

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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 boxes at the bottom of the table 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 Browse by Journal 
  • There are several tabs on the side to help filter your search 
  • Select Journals tab – use Search Journals search box to find journal(s) of interest
  • Select Categories tab – select journal topic broad topic categories if desired
  • Select JCR Year (usually, the most current year is desired); Select Edition (SCIE or SSCI) 
  • Click Submit at the bottom of the page 

For a group of journals: 

  • Select Browse by Journal 
  • There are several tabs on the side to help filter your search 
  • Select Compare Journals tab – use the Select Comparison, Select Journals, Select JCR Year (usually, the most current year is desired), Select Categories, and Select Metrics filters to compare the journals of interest by the desired JCR year and metric.
  • Click Submit at the bottom of the page 

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Scopus

Scopus 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 Compare Sources 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

*Note: If you wish to view the SJR only, you can do so if you go to the SJR Website

Find SJR and SNIP

  • To access the Compare Sources feature, click on Compare Sources to the right of the search box on the Scopus homepage
  • Enter a journal title or title word in the search box on the Compare Sources 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. Often times the search box will bring up a list of results with matching terms so you can choose your journal. 
  • Once you click on your journal, the metrics will be shown on the right, and you can click on the tabs at the top to navigate to the metric that you like. As of October 2017, the current options for viewable metrics are CiteScore, SJR, SNIP, Citations, Documents, % Not Cited, % Reviews. 
  • 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

 

Compare Sources with Search Box and Metrics Displayed

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