Limitations of citation analysis

http://www.socialsciences.leiden.edu/cwts/education/graduate-course2-cwts

An observation at the CWTS Graduate Course Measuring Science: in most lectures, the presenters emphasize not only how indicators can be constructed, measured, and used, but also under what circumstances they should not be applied. Thed van Leeuwen, for example, showed on the basis of the coverage data of the Web of Science that citation analysis should not be applied in many fields in the humanities and social sciences, and certainly not for evaluation purposes. If the references in scientific articles in the Web of Science are analyzed, there are strong field differences in the extent to which they cite articles that are themselves covered by the Web of Science. In biochemistry this is very high (92 %), whereas in the humanities this drops to below 17 %. Since citation analysis is almost always based on Web of Science data, most relevant data on communication in the humanities is missed by citation analysis. Of course, this is well-known and it is the usual argument in the humanities and social sciences against the application of citation analysis. However, this also has meant that most scholars see CWTS principally as associated with any use of citation analysis. CWTS does currently not have a strong reputation as the source of critique of citation analysis, although it has systematically, at least since 1995, criticized the Impact Factor and has also been very critical of the very popular and equally problematic h-index. Interesting mismatch between practice and reputation?

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