By a News Reporter-Staff News Editor at Information Technology Newsweekly -- Current study results on Information Technology have been published. According to news originating from Zurich, Switzerland, by VerticalNews correspondents, research stated, "Since the 1990s, with the heightened competition and the strong growth of the international higher education market, an increasing number of rankings have been created that measure the scientific performance of an institution based on data. The Leiden Ranking 2011/2012 (LR) was published early in 2012."
Our news journalists obtained a quote from the research from the University of Zurich, "Starting from Goldstein and Spiegelhalter's (1996) recommendations for conducting quantitative comparisons among institutions, in this study we undertook a reformulation of the LR by means of multilevel regression models. First, with our models we replicated the ranking results; second, the reanalysis of the LR data showed that only 5% of the PPtop10% total variation is attributable to differences between universities. Beyond that, about 80% of the variation between universities can be explained by differences among countries. If covariates are included in the model the differences among most of the universities become meaningless. Our findings have implications for conducting university rankings in general and for the LR in particular."
According to the news editors, the research concluded: "For example, with Goldstein-adjusted confidence intervals, it is possible to interpret the significance of differences among universities meaningfully: Rank differences among universities should be interpreted as meaningful only if their confidence intervals do not overlap."
For more information on this research see: Multilevel-statistical reformulation of citation-based university rankings: The Leiden ranking 2011/2012. Journal of the American Society for Information Science and Technology, 2013;64(8):1649-1658. Journal of the American Society for Information Science and Technology can be contacted at: Wiley-Blackwell, 111 River St, Hoboken 07030-5774, NJ, USA. (Wiley-Blackwell - www.wiley.com/; Journal of the American Society for Information Science and Technology - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1532-2890)
The news correspondents report that additional information may be obtained from L. Bornmann, University of Zurich, Evaluat Off, CH-8001 Zurich, Switzerland. Additional authors for this research include R. Mutz and H.D. Daniel.
Keywords for this news article include: Zurich, Europe, Switzerland, Information Technology
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