Quartile rankings are derived for each journal in each of its subject categories according to which quartile of the IF distribution the journal occupies for that subject category.
The databases that offer this indicator are:
Quartiles are useful when applying for grants and assessment such as (National Agency for Quality Assessment and Accreditation of Spain, ANECA) or (Catalan University Quality Assurance Agency, AQU Catalonia)
Quartiles are also useful when deciding best journals to publish.
SJR (SCImago Journal Rank) indicator: It expresses the average number of weighted citations received in the selected year by the documents published in the selected journal in the three previous years, --i.e. weighted citations received in year X to documents published in the journal in years X-1, X-2 and X-3.
SNIP (Source Normalized Impact per Paper) measures contextual citation impact by weighting citations based on the total number of citations in a subject field.
The Immediacy Index is the average number of times an article is cited in the year it is published.
The Immediacy Index is calculated by dividing the number of citations to articles published in a given year by the number of articles published in that year.
The databases that offer this indicator are: Incites JCR (Incites Journal Citation Reports)
A journal's Eigenfactor score is our measure of the journal's total importance to the scientific community.
The databases that offer this indicator are: Eigenfactor and Incites JCR (Incites Journal Citation Reports)
The h index expresses the journal's number of articles (h) that have received at least h citations. It quantifies both journal scientific productivity and scientific impact and it is also applicable to scientists, countries.