The Impact of Scientific Journals of Communication: Comparing Google Scholar Metrics, Web of Science and Scopus

Repiso-Caballero, Rafael and Delgado-López-Cózar, Emilio The Impact of Scientific Journals of Communication: Comparing Google Scholar Metrics, Web of Science and Scopus. Comunicar, 2013, vol. 21, n. 41, pp. 45-52. [Journal article (Paginated)]

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English abstract

Google Scholar Metrics' launch in April 2012, a new bibliometric tool for the evaluation of scientific journals by means of citation counting, has ended with the duopoly exerted by the Web of Science and Scopus databases. This paper aims at comparing the coverage of these three databases and the similarity their journal rankings may have. We selected a sample of journals from the field of Communication Studies indexed in the three databases. Data was recollected on 1720 November, 2012. 277 journals were identified to which we calculated their hindex and ranked them according to such indicator. Then, we analyzed the correlation between the rankings generated. Google Scholar Metrics dobles the coverage of the other databases, reducing the bias toward English language both; web of Science and Scopus have. Google Scholar Metrics shows higher hindex values (an average 47% higher than Scopus and 40% higher than Web of Science), allowing to better rank journals. We conclude that Google Scholar Metrics is a tool capable of identifying the main journals in Communication Studies offering results as reliable and valid as the ones Web of Science and Scopus show.

["eprint_fieldopt_linguabib_" not defined] abstract

La aparición de Google Scholar Metrics en abril de 2012 como nuevo sistema de evaluación bibliométrica de revistas científicas a partir del recuento de las citas bibliográficas que éstas han recibido en Google Scholar rompe el duopolio ejercido hasta el momento por las bases de datos Web of Science y Scopus. El objetivo de este trabajo es comparar la cobertura que poseen estas tres bases de datos y la similitud que puedan presentar los rankings elaborados a partir de ellas. Se ha elegido como muestra las revistas de comunicación indizadas en las tres bases de datos. Las búsquedas bibliográficas se efectuaron entre el 17 y el 20 de noviembre de 2012. Se calcula el índice h de las 277 revistas identificadas y se averigua la correlación existente entre los rankings generados. Google Scholar Metrics duplica la cobertura, reduce el sesgo anglosajón que poseen Web of Science y Scopus. Google Scholar Metrics proporciona índices h más elevados (un promedio de un 47% superior a Scopus y un 40% a Web of Science) con lo que permite discriminar mejor las posiciones de las revistas en el ranking. En conclusión, Google Scholar Metrics es una herramienta capaz de identificar las principales revistas de comunicación ofreciendo resultados tan solventes, fiables y válidos como los generados por Web of Science y Scopus.

Item type: Journal article (Paginated)
Keywords: Communication, Google Scholar, Scopus, Web of Science, citations analysis, bibliometrics, h index, ranking
Subjects: B. Information use and sociology of information > BB. Bibliometric methods
Depositing user: Alex Ruiz
Date deposited: 06 Aug 2013 14:41
Last modified: 02 Oct 2014 12:26
URI: http://hdl.handle.net/10760/19777

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