CiteScore is the Scopus-based counterpart to the Web of Science Journal Impact Factor. The 2020 methodology revised the calculation to a four-year window in both numerator and denominator (citations in year Y to documents published in years Y, Y-1, Y-2, Y-3 divided by the number of such documents) and uses the broader set of document types as both citing and cited entities. Like JIF, CiteScore is a journal-level metric and shares the same critiques when applied to individual papers or researchers. It is widely cited in research-assessment policies that DORA flags as problematic.
References
- Scopus 'CiteScore methodology' (elsevier.com). James E et al. 'CiteScore Metrics' commentary 2019.