Ноорог орчуулга. Эх хувийг үзнэ үү: English
What is the difference between CiteScore and Impact Factor?
They measure similar things differently. Impact Factor (Clarivate, JCR) uses a 2-year citation window and covers 22,643 journals. CiteScore (Elsevier, Scopus) uses a 4-year window and covers 28,134 journals — a much larger set. CiteScore is free; Impact Factor requires subscription. Neither is 'better' — they answer slightly different questions. Chinese and Indian institutions increasingly accept CiteScore; traditional US and UK universities often still require Impact Factor for tenure and promotion.
Detail
Window matters
JIF's 2-year window is more sensitive to recent citation spikes. CiteScore's 4-year window smooths short-term variation and better fits fields with slower citation cycles (humanities, social sciences, some engineering).
Coverage matters more
CiteScore covers about 5,491 more journals than JIF. Many good open access journals from Global South publishers appear in Scopus but not Web of Science. If your journal has no JIF, CiteScore may still exist for it.
What each counts
JIF counts citations to articles, reviews only. CiteScore counts articles, reviews, conference papers, data papers, book chapters. This means CiteScore typically produces different numbers than JIF for the same journal.
Which does your committee accept?
Depends on country and field. Chinese and Indian tenure committees increasingly accept CiteScore. Western European and North American promotion committees often still require JIF. When in doubt, ask before you submit.