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New developments in citation analysis and research evaluation

This contribution discusses a number of studies that are currently carried out by the author and his colleagues at the Centre for Science and Technology Studies (CWTS) at Leiden University. A first cluster of studies relates to ranking of world universities, and a second to the effects of evaluation processes, and particularly of the use of bibliometric indicators therein, upon author publication practices and upon journal editorial practices. The core of this contribution presents preliminary results from a study examining the effect of “open access” upon citation impact and visibility. This contribution presents the main lines of the research and preliminary findings. Detailed findings from all studies will be published in separate, future research articles.