The document discusses several metrics for evaluating journals:
- Cite Score measures citations received over a 3-year period divided by number of published items in Scopus.
- Impact Factor from Journal Citation Reports measures average citations over a 2-year period.
- SNIP accounts for differences in citation behavior between fields using a source normalization approach.
- SJR measures influence based on weighted citations from prestigious journals over 3 years.
- Impact per Publication calculates citations in a year divided by number of publications in the prior 3 years.