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Pregled bibliografske jedinice broj: 362625

Calculating Impact Factor: How Bibliographical Classification of Journal Items Affects the Impact Factor of Large and Small Journals

Golubić, Rajna; Rudeš, Mihael; Kovačić, Nataša; Marušić, Matko; Marušić, Ana
Calculating Impact Factor: How Bibliographical Classification of Journal Items Affects the Impact Factor of Large and Small Journals // Science and Engineering Ethics, 14 (2008), 1; 41-49 doi:10.1007/s11948-007-9044-3 (međunarodna recenzija, članak, znanstveni)

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Naslov
Calculating Impact Factor: How Bibliographical Classification of Journal Items Affects the Impact Factor of Large and Small Journals

Autori
Golubić, Rajna ; Rudeš, Mihael ; Kovačić, Nataša ; Marušić, Matko ; Marušić, Ana

Izvornik
Science and Engineering Ethics (1353-3452) 14 (2008), 1; 41-49

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Journal; Impact factor; Bibliographical database; Indexing

Sažetak
As bibliographical classification of published journal items affects the denominator in this equation, we investigated how the numerator and denominator of the impact factor (IF) equation were generated for representative journals in two categories of the Journal Citation Reports (JCR). We performed a full text search of the 1st-ranked journal in 2004 JCR category “ Medicine, General and Internal” (New England Journal of Medicine, NEJM, IF = 38.570) and 61st-ranked journal (Croatian Medical Journal, CMJ, IF = 0.690), 1st-ranked journal in category “ Multidisciplinary Sciences” (Nature, IF = 32.182) and journal with a relative rank of CMJ (Anais da Academia Brasileira de Ciencias, AABC, IF = 0.435). Large journals published more items categorized by Web of Science (WoS) as non-research items (editorial material, letters, news, book reviews, bibliographical items, or corrections): 63% out of total 5, 193 items in Nature and 81% out of 3, 540 items in NEJM, compared with 31% out of 283 items in CMJ and only 2 (2%) out of 126 items in AABC. Some items classified by WoS as non-original contained original research data (9.5% in Nature, 7.2% in NEJM, 13.7% in CMJ and none in AABC). These items received a significant number of citations: 6.9% of total citations in Nature, 14.7% in NEJM and 18.5% in CMJ. IF decreased for all journals when only items presenting original research and citations to them were used for IF calculation. Regardless of the journal’ s size or discipline, publication of non-original research and its classification by the bibliographical database have an effect on both numerator and denominator of the IF equation.

Izvorni jezik
Engleski



POVEZANOST RADA

Projekti:
216-1080314-0245 - Utjecaj znanstvenog časopisa na hrvatsku medicinsku zajednicu (Marušić, Matko, MZOS ) ( CroRIS)

Ustanove:
Medicinski fakultet, Zagreb

Profili:

Avatar Url Matko Marušić (autor)

Avatar Url Ana Marušić (autor)

Avatar Url Nataša Kovačić (autor)

Avatar Url Rajna Golubić (autor)

Poveznice na cjeloviti tekst rada:

doi www.springerlink.com

Citiraj ovu publikaciju:

Golubić, Rajna; Rudeš, Mihael; Kovačić, Nataša; Marušić, Matko; Marušić, Ana
Calculating Impact Factor: How Bibliographical Classification of Journal Items Affects the Impact Factor of Large and Small Journals // Science and Engineering Ethics, 14 (2008), 1; 41-49 doi:10.1007/s11948-007-9044-3 (međunarodna recenzija, članak, znanstveni)
Golubić, R., Rudeš, M., Kovačić, N., Marušić, M. & Marušić, A. (2008) Calculating Impact Factor: How Bibliographical Classification of Journal Items Affects the Impact Factor of Large and Small Journals. Science and Engineering Ethics, 14 (1), 41-49 doi:10.1007/s11948-007-9044-3.
@article{article, author = {Golubi\'{c}, Rajna and Rude\v{s}, Mihael and Kova\v{c}i\'{c}, Nata\v{s}a and Maru\v{s}i\'{c}, Matko and Maru\v{s}i\'{c}, Ana}, year = {2008}, pages = {41-49}, DOI = {10.1007/s11948-007-9044-3}, keywords = {Journal, Impact factor, Bibliographical database, Indexing}, journal = {Science and Engineering Ethics}, doi = {10.1007/s11948-007-9044-3}, volume = {14}, number = {1}, issn = {1353-3452}, title = {Calculating Impact Factor: How Bibliographical Classification of Journal Items Affects the Impact Factor of Large and Small Journals}, keyword = {Journal, Impact factor, Bibliographical database, Indexing} }
@article{article, author = {Golubi\'{c}, Rajna and Rude\v{s}, Mihael and Kova\v{c}i\'{c}, Nata\v{s}a and Maru\v{s}i\'{c}, Matko and Maru\v{s}i\'{c}, Ana}, year = {2008}, pages = {41-49}, DOI = {10.1007/s11948-007-9044-3}, keywords = {Journal, Impact factor, Bibliographical database, Indexing}, journal = {Science and Engineering Ethics}, doi = {10.1007/s11948-007-9044-3}, volume = {14}, number = {1}, issn = {1353-3452}, title = {Calculating Impact Factor: How Bibliographical Classification of Journal Items Affects the Impact Factor of Large and Small Journals}, keyword = {Journal, Impact factor, Bibliographical database, Indexing} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • Social Science Citation Index (SSCI)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE

Uključenost u ostale bibliografske baze podataka::


  • Index Medicus

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