Measurable citation impact, as expressed in the Journal Impact Factor, is published annually for journals covered in SCIE and SSCI. ESCI is a multidisciplinary Citation Index covering all areas of the scholarly literature of the sciences, social sciences and arts & humanities.
The Core Collection Journal Selection Process now includes a set of fundamental criteria that govern the selection of Journals for ESCI.
In addition, we do not calculate Journal Impact Factor metrics for journals covered in ESCI.
Moreover, the citation activity for journals covered in ESCI will be used in the Journal Selection Process for SCIE, SSCI and AHCI and will enhance the transparency of that aspect of the Process.
We will not, however, publish an official Impact Factor for publications covered in ESCI.
This principle is often referred to as Bradford’s Law. Of these 1,000 journals, there are relatively few with a very strong relevance to the given topic, whereas there are many with a weaker relevance to it.
Those with a weak relevance to the given discipline or topic, however, typically have a strong relevance to some other discipline.
(As mentioned above, many journals under evaluation for SCIE, SSCI or AHCI may be covered initially in ESCI.) For journals evaluated for possible coverage in SCIE, SSCI or AHCI it is important that all issues be received/ posted in a timely manner.
(After three consecutive issues have been received/ posted the journal publisher may request an update on the status of the evaluation of that journal.
Please do not request an evaluation status update until after three consecutive issues have been received/ posted, or nine months’ content has been posted.) Journal evaluation is ongoing with journals added to and deleted from the throughout the year.
Each year, the Editorial Development staff reviews over 3,500 journal titles for inclusion in SCIE, SSCI and AHCI.
Coverage in ESCI, however, does not guarantee eventual acceptance into SCIE, SSCI or AHCI.