Journal Impact Factor is a measure of the frequency with which the "average article" in a journal has been cited in a given period of time.
Different sources will give different measures of journal impact as each is drawing from its own database content. CPUT provides access to two sources for journal impact figures: Scopus and Google Metrics. On the right, you will see examples of both.
When doing journal comparisons, be sure to compare like with like. Do not compare the SJR of Journal A with the h5-index of Journal B. Rather compare the SJR of both journals, or the h5-index.
Do not make cross-discipline comparisons as citation and publication behaviour differs in different fields.
The Scopus Journal Analyzer provides a measure of journal performance. Scopus includes over 21 000 peer-reviewed publications from 5,000 publishers; the Analyzer enables you to compare up to 10 journals simultaneously, back to 1996.
The Scopus Journal Analyzer includes 2 journal metrics:
To use Journal Analyzer:
Google Metrics bases its calculations on Google Scholar, which has a wide base that is not subject to quality control.
It gives two measures of journal impact:
To access Google Metrics, follow these steps: