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On using the Shanghai ranking to assess the research performance of university systems

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An Erratum to this article was published on 04 November 2010

Abstract

We take a new look at the Shanghai Jiao Tong Academic Ranking of World Universities to evaluate the performance of whole university systems. We deal with system aggregates by means of averaging scores taken over a number of institutions from each higher education system according to the Gross Domestic Product of its country. We treat the set of indicators (measures) at the country level as a scale, and investigate its reliability and dimensionality using appropriate statistical tools. After a Principal Component Analysis is performed, a clear picture emerges: at the aggregate level ARWU seems to be a very reliable one-dimensional scale, with a first component that explains more than 72% of the variance of the sample under analysis. The percentages of variance of the indicators explained by the first component do shed light on the fact that ARWU is in fact measuring the research quality (both at the individual and collective levels) of a university system. When the second principal component is taken into account, the two principal components contribute to explain more than 90% of the variance. The rotated solution facilitates the interpretation of the components and provides clear and interesting clustering information about the 32 higher education systems under analysis.

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Notes

  1. For a review of the nature of the indicators we refer to the web page of ARWU (http://www.arwu.org).

  2. http://www.isihighlycited.com.

  3. When the number of academic staff for the institution is not known, ARWU uses the weighted total scores of the other five indicators.

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Acknowledgments

The author would like to thank the financial support from Xunta de Galicia through the IMAN Program. The author would also thank the anonymous reviewer for the insightful comments and suggestions which helped to improve the manuscript.

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Correspondence to Domingo Docampo.

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An erratum to this article can be found at http://dx.doi.org/10.1007/s11192-010-0315-4

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Docampo, D. On using the Shanghai ranking to assess the research performance of university systems. Scientometrics 86, 77–92 (2011). https://doi.org/10.1007/s11192-010-0280-y

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