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The Correlation among Y-Index and Other Scientometric Indicators


Affiliations
1 Department of Medical Library and Information Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran, Islamic Republic of
 

Scientometric analysis of research outputs is important in universities for research evaluation as it provides necessary inputs for decision makers. Common scientometric indicators are the number of publications, average citation per document, h-index and the number of authors. Y-index is also an indicator considering both the quantity and quality of scientific products, based on first author and corresponding author publications. This study aims at determining these indicators in first-grade universities of medical sciences in Iran and investigating the correlation among Y-index and other mentioned indices, and comparison between Y-index and h-index. The population under study comprised of all scientific productions of fourteen top universities of medical sciences in Iran, indexed in Web of Science in 2012 (7435 documents). The Tehran University of Medical Sciences is ranked first considering five indicators under investigation. A significant positive relationship was obtained among Y-index with the number of publications, the number of authors, and h-index. This indicates that Y-index can be a potential proper index, for qualitative and quantitative evaluation of universities along with other scientific and research institutions.

Keywords

Average Citations, h-index, Iran, Medical Universities, Scientific Publications, Y-Index.
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  • Geuna, A. and Martin, B. R., University research evaluation and funding: An international comparison. Minerva, 2003, 41, 277– 304.

  • Moed, H. F., Citation analysis in research evaluation (Vol. 9), Dordrecht: Springer Science and Business Media, 2006.

  • Van den Besselaar, P. and Sandström, U., Does quantity make a difference? The importance of publishing many papers. http:// www.researchgate.net/profile/Ulf_Sandstroe/publication/280110 798_Does_Quantity_Make_a_Difference/links/55ab981608ae815a0427b624.pdf; accessed on 2 September 2015.

  • Rehn, C., Kronman, U. and Wadsko, D., Bibliometric indicators definitions and usage at Karolinska Institutet, Stockholm: Karolinska Institutet University Library, 2007.

  • Fu, H. Z. and Ho, Y. S., Top cited articles in adsorption research using Y-index. Res. Eval., 2014, 23, 12–20.

  • Avkiran, N. K., Scientific collaboration in finance does not lead to better quality research. Scientometrics, 1997, 39, 173–184.

  • Cole, J., and Cole, S., Measuring the quality of sociological research: problems in the use of the Science Citation Index. Am. Sociol., 1971, 6, 23–29.

  • Hirsch, J. E., An index to quantify an individual’s scientific research output. Proc. Natl. Acad. Sci. USA, 2005, 102, 16569– 16572.

  • Lu, H. and Feng, Y., A measure of authors’ centrality in co-authorship networks based on the distribution of collaborative relationships. Scientometrics, 2009, 81, 499–511.

  • Sonnenwald, D. H., Scientific collaboration. Ann. Rev. Info. Sci. Tech., 2007, 41, 643–681.

  • Wang, Y., Wu, Y., Pan, Y., Ma, Z. and Rousseau, R., Scientific collaboration in China as reflected in co-authorship. Scientometrics, 2005, 62, 183–198.

  • Mali, F., Kronegger, L., Doreian, P. and Ferligoj, A., Dynamic scientific co-authorship networks. In Models of Science Dynamics, Berlin, Springer, 2012, pp. 195–232.

  • Harzing, A. W., Australian research output in economics and business: high volume, low impact? Aust. J. Manage., 2005, 30, 183–200.

  • Ho, Y. S., Top-cited articles in chemical engineering in Science Citation Index Expanded: A bibliometric analysis. Chinese J. Chem. Eng., 2012, 20, 478–488.

  • Mattsson, P., Sundberg, C. J. and Laget, P., Is correspondence reflected in the author position? A bibliometric study of the relation between corresponding author and byline position. Scientometrics, 2010, 87, 99–105.

  • Slone, R. M., Coauthors contributions to major papers published in the AJR: frequency of undeserved coauthorship. AJR Am. J. Roentgenol., 1996, 167, 571–579.

  • Burman, K. D., Hanging from the masthead: reflections on authorship. An. Inter. Med., 1982, 97, 602–605.

  • Ho, Y. S., Bibliometric analysis of adsorption technology in environmental science. J. Envir. Protect. Sci., 2007, 1, 1–11.

  • Mao, N., Wang, M. H. and Ho, Y. S., A bibliometric study of the trend in articles related to risk assessment published in Science Citation Index. Hum. Ecol. Risk. Assess., 2010, 16, 801–824.

  • Wang, M. H., Fu, H. Z. and Ho, Y. S., Comparison of universities’ scientific performance using bibliometric indicators. Malays. J. Libr. Inf. Sci., 2011, 16, 1–19.

  • Ho, Y. S., Satoh, H. and Lin, S. Y., Japanese lung cancer research trends and performance in Science Citation Index. Intern. Med., 2010, 49, 2219–2228.

  • Ho, Y. S., The top-cited research works in the Science Citation Index Expanded. Scientometrics, 2013, 94, 1297–1312.

  • Fu, H. Z. and Ho, Y.-S., Independent research of China in Science Citation Index Expanded during 1980–2011. J. Informetr., 2013, 7, 210–222.

  • Ivanović, D., and Ho, Y. S., Independent publications from Serbia in the Science Citation Index Expanded: a bibliometric analysis. Scientometrics, 2014, 101, 603–622.

  • Chuang, K. Y. and Ho, Y. S., An evaluation based on highly cited publications in Taiwan. Curr. Sci., 2015, 108, 933.

  • Niakan, S. and Gharibi, H., Iran Knowledge: Iranian Contribution to International Knowledge. Year 2000, Tehran, Iranian Information and Documentation Center (IRANDOC), 2003.

  • Abolghassemi Fakhree, M. A. and Jouyban, A., Scientometric analysis of the major Iranian medical universities. Scientometrics, 2011, 87, 205–220.

  • Yazdani, K., Rahimi-Movaghar, A., Nedjat, S., Ghalichi, L. and Khalili, M., A 5-year scientometric analysis of research centers affiliated to Tehran University of Medical Sciences. Med. J. Islam Repub. Iran (MJIRI), 2015, 29, 206–200.

  • Sharifzadeh, S., Ghasempour, M., Hajebrahimi, M., Rezaianzadeh, A. and Dehghan, S., Evaluation of the scientific output in one of the major medical universities of Iran. Shiraz E. Med. J., 2014, 15.

  • Shahbodaghi, A. and Shekofteh, M., A comprehensive study of published articles by members of SBMU and their citation status as reported by the Institute for Scientific Information (ISI) from 1998–2007. Pajouhesh Dar Pezeshki (J. Res. Med. Sci.), 2009, 33.

  • Noori, R., Norouzi, A. and Mirzaee, A., Science Production of IUMS Researchers as Appeared in the Web of Science from 1976 to 2006. Health Inf. Manage, 2008, 3, 73–82.

  • Ebrahimi, S. and Jowkar, A., The situation of scientific publications of Iran’s universities of medical science on the basis of Scientometrics Qualitative and Quantitative Indicators 1997–2006*. Health Inf. Manage, 2010, 7.

  • Ho, Y. S., Bibliometric analysis of biosorption technology in water treatment research from 1991 to 2004. Int. J. Environ. Pollut., 2008, 34, 1–13.

  • Iran ministry of health and medical education. Deputy of research and technology.The result of evaluation of medical universities of medical sciences in Iran 2006. hbi.ir/research/evaluation/ university/.../report85.pdf.ccessed20 August 2015.

  • Guan, J. and Gao, X., Comparison and evaluation of Chinese research performance in the field of bioinformatics. Scientometrics, 2008, 75, 357–379.

  • Cronin, B. and Meho, L., Using the h-index to rank influential information scientists. J. Assoc. Inf. Sci. Technol., 2006, 57, 1275–1278.


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  • The Correlation among Y-Index and Other Scientometric Indicators

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Authors

Maryam Shekofteh
Department of Medical Library and Information Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran, Islamic Republic of
Maryam Mohseny
Department of Medical Library and Information Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran, Islamic Republic of
Azam Shahbodaghi
Department of Medical Library and Information Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran, Islamic Republic of
Farid Zayeri
Department of Medical Library and Information Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran, Islamic Republic of
Forough Rahimi
Department of Medical Library and Information Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran, Islamic Republic of

Abstract


Scientometric analysis of research outputs is important in universities for research evaluation as it provides necessary inputs for decision makers. Common scientometric indicators are the number of publications, average citation per document, h-index and the number of authors. Y-index is also an indicator considering both the quantity and quality of scientific products, based on first author and corresponding author publications. This study aims at determining these indicators in first-grade universities of medical sciences in Iran and investigating the correlation among Y-index and other mentioned indices, and comparison between Y-index and h-index. The population under study comprised of all scientific productions of fourteen top universities of medical sciences in Iran, indexed in Web of Science in 2012 (7435 documents). The Tehran University of Medical Sciences is ranked first considering five indicators under investigation. A significant positive relationship was obtained among Y-index with the number of publications, the number of authors, and h-index. This indicates that Y-index can be a potential proper index, for qualitative and quantitative evaluation of universities along with other scientific and research institutions.

Keywords


Average Citations, h-index, Iran, Medical Universities, Scientific Publications, Y-Index.

References





DOI: https://doi.org/10.18520/cs%2Fv110%2Fi9%2F1823-1828