Multiple Bibliometric Indicators Approach to Croatian Open Access (OA) Journals

Jadranka Stojanovski, Franjo Pehar

Abstract


In the academic environment funding of research is mainly based on the research performance assessment predominantly focused on different quantitative indicators like number of publications, number of citations or impact factor of the source journals. In recent years two criteria are prevailing in the Croatian scientific community, and the importance of each criteria vary between disciplines: a) number of papers published in the journals indexed by Web of Science database, and b) impact factors (JIF) of source journals. Metrics at the article level often have been neglected. As a result researchers are under pressure to publish their papers in journals with high JIF. This is particularly true for social sciences and humanities where researchers are often facing a dilemma to publish in “high-impact”, frequently fee-based, international journals or in local OA journals well recognized by the national scientific and professional community. In this paper the visibility, popularity and impact of Croatian OA journals are analyzed and presented.

There are 322 scholarly, professional and popular OA journals included in the the Croatian OA journals portal (HRCAK) with a total of 101.204 available full-text articles. All HRCAK journals are included in Google Scholar (GS), 52 of them are indexed in the Thomson Reuter’s Web of Science (WoS), and 134 in Elsevier’s Scopus. Such a good coverage of Croatian OA journals offers many possibilities for the comparison of citation as well as other types of metrics.

Multiple bibliometric indicators at journal and article level have been analyzed and compared for 45 HRCAK OA journals indexed both in GS, Scopus and WoS. Different indicators based on citation data (Journal Impact Factor, Eigenfactor Score, SCImago Journal Rank and /h/-index) have been analyzed and compared with the number of visits (hits) derived from the log file analysis. Detailed comparison has been done at the general level and within specific scientific areas. Article level analysis was also conducted by examining the relationships between the number of citations and the number of article downloads. The results have shown that popularity of the journal article measured by the number of downloads don't correlate with the impact measured by the journal citations.

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