COVID-19, the Yule-Simpson paradox and research evaluation

Zhiqi Wang () and Ronald Rousseau ()
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Zhiqi Wang: Dalian University of Technology
Ronald Rousseau: University of Antwerp

Scientometrics, 2021, vol. 126, issue 4, No 34, 3511 pages

Abstract: Abstract The Yule-Simpson paradox refers to the fact that outcomes of comparisons between groups are reversed when groups are combined. Using Essential Sciences Indicators, a part of InCites (Clarivate), data for countries, it is shown that although the Yule-Simpson phenomenon in citation analysis and research evaluation is not common, it isn’t extremely rare either. The Yule-Simpson paradox is a phenomenon one should be aware of, otherwise one may encounter unforeseen surprises in scientometric studies.

Keywords: Yule-Simpson paradox; Relative citations; Scientometric comparisons between countries (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1007/s11192-020-03830-w

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