Bibliometric and citation analysis

Bibliometrics is the statistical analysis of bibliographic data. It is increasingly used to measure the impact of research, for example in the UK’s Research Excellence Framework (REF). There are various metrics and tools available, for example:

New to bibliometrics? - MyRI (My Research Impact) is a suite of online tutorials covering bibliometrics topics including how to calculate your H-Index, citation analysis tools, Journal Citation Reports and more. The East Midlands Research Group have created 5 online units that include Author bibliometrics and Journal bibliometrics.

Journal Impact Factor - Journal Citation Report

To assess the impact of a particular journal Stirling University provides access to Journal Citation Reports. This is a tool for journal evaluation, using information drawn from over 8,400 journals. There are two editions, published annually: science and social science. See the A-Z list for more information. An online tutorial is available.

European Reference Index for the Humanities

European Reference Index for the Humanities: There is no humanities list in the Journal Citation Reports so you may find this Index helpful.

Essential Science Indicators

Part of the Web of Science service, Essential Science Indicators provides access to a wide range of science performance statistics and trends including citation data. More information about this service can be found in the online help.


SCImago Journal Rank (SJR) is a measure of the influence of scholarly journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from.  This results in a size-independent indicator that ranks journals by their ‘average prestige per article’.  SJR was developed by researchers in Spain and uses the information contained in the SCOPUS database (Elsevier).   More information at

Source Normalized Impact per Paper (SNIP) is the ratio of a journal’s citation count per paper and the “citation potential” in its subject field. The impact of a single citation is given higher value in subject areas where citations are less likely, and vice versa.  Allows direct comparison of sources in different subject fields.


To find a journal’s SJR and SNIP in Scopus:

  1. In the Portal, select A-Z list of online resources and choose Scopus
  2. Within Scopus, select the "Compare sources" link above the search boxes on the right
  3. Enter a journal title (or ISSN or Publisher)
  4. In the results, tick the box to the left of any journal title you are interested in
  5. You will see the SJR values appear in the graph - use the tabs above the graph to switch to see SNIP values
  6. You can choose up to 10 journals to analyse and compare to each other on the one graph.


More information about the journal metrics SJR and SNIP at



Eigenfactor scores and Article Influence scores rank journals much as Google ranks websites. Data from the producers of Web of Science is used in calculating the scores. The site is easy to navigate and a wide range of academic disciplines are included.


Google Scholar Metrics

Google Scholar Metrics lists every (significant) journal and provides a quick way to gauge the visibility and influence of their recent articles. 

The list is based on two metrics: h5-index and h5-median - the higher these numbers are the better.

h5-index: The h-index of a publication is the largest number h such that at least h articles in that publication were cited at least h times each. For example, a score of 35 shows that at least 35 of the journal's articles have been cited at least 35 times in the last five full years.

h5-median: The h5-median is a measure of the distribution of citations to the articles over the last five full years. If it is high, then the journal has a peak of high-scoring papers; if lower, it has a tail of lower scoring papers.


Publish or Perish

Publish or Perish uses Google Scholar data to evaluate journal articles and can be useful for subject areas where there is traditionally little formal evaluation. It is published primarily to assist academics to target papers at journals of an appropriate standard. Publish or Perish uses Google Scholar data to search for articles citing your article of interest. See the ISSUE article (page 4) about this service that you can quickly download onto your computer desktop.


AltMetrics is the: "creation and study of new metrics based on the Social Web for analysing, and informing scholarship". There is a growing list of tools for measuring these alternative metrics.

For example:


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Subject-based metrics

Some subject areas may have their own lists of ranked journals. For example, the Association of Business Schools produces an Academic Journal Guide annually that provides ranked listings of business and management journals (, you will be asked to register, this is free). So check with colleagues whether there is any subject specific ranking for your research area.

ORCID identifier

ORCID provides a persistent digital identifier that distinguishes you from every other researcher and helps ensure that your work is recognised as yours. 

  1. Register at:
  2. Import your research outputs and add biographical information using their automated import wizards.  You can also export your publication details from a GoogleScholar Profile (see:  We have gathered this information all together in a libguide on researcher profiles
  3. Add your ORCID ID to your Research Management System (RMS) profile 


Add your ORCID ID to RMS in the 16 digit format xxxx-xxxx-xxxx-xxxxx in your Profile (Editable information tab):


Leiden Manifesto for research metrics

Metrics about research should be used with great care and understanding so as to avoid misleading and inaccurate interpretations and conclusions. The ten principles outlined in the 'Leiden Manifesto for research metrics' are a very useful guide.

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