International Journal of Library and Information Science
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Article Number - B8E9DF065829

Vol.9(8), pp. 66-77 , September 2017
ISSN: 2141-2537

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Full Length Research Paper

Research growth and citation impact of Tanzanian scholars: A 24 year’s scientometric study

Raphael Z. Sangeda
  • Raphael Z. Sangeda
  • Department of Pharmaceutical Microbiology, Muhimbili University of Health and Allied Sciences (MUHAS), P. O. Box 65013, Dar es Salaam, Tanzania.
  • Google Scholar
Edda Tandi Lwoga
  • Edda Tandi Lwoga
  • Directorate of Library Services, Muhimbili University of Health and Allied Sciences (MUHAS, P. O. Box 65001, Dar es Salaam, Tanzania.
  • Google Scholar

 Received: 24 May 2017  Accepted: 01 August 2017  Published: 30 September 2017

Copyright © 2017 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0

A scientometric analysis was conducted to map the research growth and citation impact of Tanzania scholars over a period of 24 years starting from 1991 to 2015. We analyzed data for research publications of all Tanzania scholars obtained from the SCOPUS database. The study analyzed the year-wise distribution of publications, subject-wise distribution of publications, the authorship pattern, degree of collaboration, and the citation impact. A total of 12,379 articles were published from 34 academic and research institutions. The top three universities with high cumulative number of publications were Muhimbili University of Health and Allied Sciences, University of Dar es salaam and Sokoine University of Agriculture. The top subject was medicine. The maximum number of citations received in a single publication was 1914. Publications metrics scores varied a lot based on indices chosen to rank the Tanzanian scholars. The study findings call for a need for scholars to collaborate with external partners within and outside the country, and publish in journals with a higher impact.

Key words: Scientometrics, research growth, research performance, research publications, citation impact, Tanzania.

Abrahams JL, Burke M, Mouton J (2009). Research Productivity-Visibility-Accessibility and Scholarly Communication in Southern African Universities. Afr. J. Inf. Commun. pp. 20-36.


Bornmann L, Daniel HD (2008). What do citation counts measure? A review of studies on citing behavior. J. Doc. 64:45-80.


Boshoff N (2010). South–South research collaboration of countries in the Southern African Development Community (SADC). Scientometrics 84:481-503.


Braun T, Glänzel W, Schubert A (2006). A Hirsch-type index for Journals. Scientometrics 69:169-173.


Breugelmans JG, Makanga MM, Cardoso ALV, Mathewson SB, Sheridan-Jones BR, Gurney KA, Mgone CS (2015). Bibliometric Assessment of European and Sub-Saharan African Research Output on Poverty-Related and Neglected Infectious Diseases from 2003 to2011. PLoS Negl. Trop. Dis. 9: e0003997.


Confraria H, Godinho MM (2015). The impact of African science: a bibliometric analysis. Scientometrics 102:1241-1268.


Egghe L (2006). Theory and practice of the g-index. Scientometrics 69:131-152.


Elsevier BV (2016). Scopus. The largest database of peer-reviewed literature.


Fari SA, Ocholla DN (2016). Nature, patterns and trends of research collaboration among academics in Nigeria and South Africa. Mousaion 34:1-22.


Gondwe M (2010). Global research report on Africa. Malawi Med. J. 22:9.


Gorraiz J, Schloegl C (2008). A bibliometric analysis of pharmacology and pharmacy journals: Scopus versus Web of Science. J. Inf. Sci. 34:715-725.


Guindon GE, Lavis JN, Becerra-Posada F, Malek AH, Shi G, Yesudian CAK, Hoffman SJ (2010). Bridging the gaps between research, policy and practice in low- and middle-income countries: a survey of health care providers. CMAJ 182:E362-372.


Hirsch JE (2005). An index to quantify an individual's scientific research output. Proc. Natl. Acad. Sci. U. S. A. 102(46):16569.


Inglesi-Lotz R, Pouris A (2013). The influence of scientific research output of academics on economic growth in South Africa: An autoregressive distributed lag (ARDL) application. Scientometrics 95:129-139.


Kotecha P, Walwyn D, Pinto C (2011). Deepening Research Capacity and Collaboration across Universities in SADC: A Southern African Universities Regional Research and Development Fund. Southern African Regional Universities Association (SARUA), Johannesburg.


Lavis JN, Guindon GE, Cameron D, Boupha B, Dejman M, Osei Eric JA, Sadana R (2010). Bridging the gaps between research, policy and practice in low- and middle-income countries: a survey of researchers. CMAJ 182:E350-61.


Van Leeuwen TN, Visser MS, Moed HF, Nederhof TJ, Anthony FJVR (2003). The holy grail of science policy: Exploring and combining bibliometric tools in search of scientific excellence. Scientometrics 57:257-280.


Lwoga ET, Sife AS (2013). Mapping the Research Productivity and Scholarly Impact of the Traditional Medicine Scholars in Tanzania : A Scientometric Analysis. Intl. J. Digit. Libr. Serv. 3:38-52.


Lwoga ET, Sife AS (2014). Research productivity and Web Visibility of Dental Faculty in Tanzania: A scientometric analysis. In: 2nd MUHAS Scientific Conference 14th-15th May 2014, Dar es Salaam, Tanzania.


Mongeon P, Paul-Hus A (2016). The journal coverage of Web of Science and Scopus: a comparative analysis. Scientometrics 106:213-228.


Nature (2015). Africa. Nature 522:S28–S29.


Onyancha OB (2016). Open Research Data in Sub-Saharan Africa: A Bibliometric Study Using the Data Citation Index. Publ. Res. Q. 32:227-246.


Onyancha OB, Maluleka JR (2011). Knowledge production through collaborative research in sub-Saharan Africa: How much do countries contribute to each other's knowledge output and citation impact? Scientometrics 87:315-336.


Onyancha OB, Ocholla DN (2009). Assessing researchers' performance in developing countries: Is google scholar an alternative? Mousaion 27:43-64.


Perron BE, Victor BG, Hodge DR, Salas-Wright CP, Vaughn MG, Taylor RJ (2016). Laying the Foundations for Scientometric Research: A Data Science Approach. Res. Soc. Work Pract. 


Pouris A (2010). A scientometric assessment of the Southern Africa Development Community: science in the tip of Africa. Scientometrics 85:145-154.


Pouris A (2012). Scientometric research in South Africa and successful policy instruments. Scientometrics 91:317-325.


Pouris A (2015). An assessment of South Africa's research journals: Impact factors, Eigenfactors and structure of editorial boards. S. Afr. J. Sci. 111:1-8.


Pouris A, Ho Yuh-Shan (2014). Research emphasis and collaboration in Africa. Scientometrics 98:2169-2184.


Ramkumar S, Narayanasamy, N, Nageswara RP (2016). Collaboration trend in speech, language and hearing sciences: A scientometric study based on select journals. Intl. J. Educ. Multidiscip. Stud. 3(3):2455-2526.


Ranking web of Universities United Republic of Tanzania (2016). November 03rd. Retrieved from 



Schemm Y (2013). Africa doubles research output over past decade, moves towards a knowledge-based economy. Res. Trends pp. 11-12.


Sidiropoulos A, Katsaros D, Manolopoulos Y (2007). Generalized Hirsch h-index for disclosing latent facts in citation networks. Scientometrics 72:253-280.


Sife A, Bernard RB (2016). Scientometric Portrait of Prof. Rudovick R. Kazwala: A Public Health Veterinarian. Intl. J. Libr. Inf. Stud. 6:63-76.


Sife ASAS, Bernard R, Ernest EE, Benard R (2013). Research productivity and scholarly impact of forestry researchers at Sokoine University of Agriculture: A bibliometric Analysis. J. Contin. Educ. Ext. 4:261-278.


Sife AS, Lwoga ET, Said SA, Tandi LE (2014). Publication productivity and scholarly impact of academic librarians in Tanzania. New Libr. World 115:527-541.


Smith D, Katz JS (2000). Collaborative Approaches to Research. A report to the Higher Education Funding Council for England. Centre for Policy Studies in Education, University of Leeds. ISBN 085316: 214.


The Citizen Magazine (2016). Industrial policy execution Tanzania's big challenge. Retrieved from 



The United Republic of Tanzania (2010). The National Research and Development Policy. 



Toivanen H, Ponomariov B (2011). African regional innovation systems: Bibliometric analysis of research collaboration patterns 2005-2009. Scientometrics 88:471-493.


United Nations (2015). Sustainable development goals. Retrieved from 




APA Sangeda, R. Z., & Lwoga, E. T. (2017). Research growth and citation impact of Tanzanian scholars: A 24 year’s scientometric study. International Journal of Library and Information Science, 9(8), 66-77.
Chicago Raphael Z. Sangeda and Edda Tandi Lwoga. "Research growth and citation impact of Tanzanian scholars: A 24 year’s scientometric study." International Journal of Library and Information Science 9, no. 8 (2017): 66-77.
MLA Raphael Z. Sangeda and Edda Tandi Lwoga. "Research growth and citation impact of Tanzanian scholars: A 24 year’s scientometric study." International Journal of Library and Information Science 9.8 (2017): 66-77.

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