ISI-indexed journals are journals with impact factor indexed in the Web of Science. Generally, Web of Science Core Collection includes only journals that demonstrate high levels of editorial rigor and best practice and accepted widely by academic institutions around the world. WOS journals are high quality journals and only publish papers that wen through a stringent appraisal with high impact. In the citation reports provided by the WOS platform, public can check the detailed indexing information of a particular journal.
Quartile is used to determine the rank of a journal in its field of knowledge. Q1 is occupied by the top 25% of journals in the list; Q2 is occupied by journals in the 25 to 50% group; Q3 is occupied by journals in the 50 to 75% group and Q4 is occupied by journals in the 75 to 100% group. The most prestigious journals within a subject area are those which occupy the first quartile, Q1 and with greater impact factor. Presently, WOS journals are ranked into quartile based on 2 main indicators, one is Journal Citation Index (JCI) and another one is Journal Impact Factor (JIF). JCI is new indicator with separate quartile. In the journal citation report (JCR) of a journal, we can check for both JCI and JIF information for the journal, however for new journal that just been indexed in WOS, only JCI is stated in its JCR. For majority institutions, JIF still is the main indicator to justify the quality of a journal and the ranking is still based on JIF.
