lutz.bornmann at GV.MPG.DE
Thu Jul 31 02:34:03 EDT 2014
Alternative metrics in scientometrics: A meta-analysis of research into three altmetrics
Alternative metrics are currently one of the most popular research topics in scientometric research. This paper provides an overview of research into three of the most important altmetrics: microblogging (Twitter), online reference managers (Mendeley and CiteULike) and blogging. The literature is discussed in relation to the possible use of altmetrics in research evaluation. Since the research was particularly interested in the correlation between altmetrics counts and citation counts, this overview focuses particularly on this correlation. For each altmetric, a meta-analysis is calculated for its correlation with traditional citation counts. As the results of the meta-analyses show, the correlation with traditional citations for micro-blogging counts is negligible (pooled r=0.003), for blog counts it is small (pooled r=0.12) and for bookmark counts from online reference managers, medium to large (CiteULike pooled r=0.23; Mendeley pooled r=0.51). Since the added value of an alternative metric, as an additional metric compared with traditional citation counts, is greater the less it correlates with traditional citation counts, the greatest added value - according to the meta-analysis - is associated with Twitter citations.
Available at: http://arxiv.org/abs/1407.8010
Dr. Dr. habil. Lutz Bornmann
Division for Science and Innovation Studies
Administrative Headquarters of the Max Planck Society
Tel.: +49 89 2108 1265
Mobil: +49 170 9183667
Email: bornmann at gv.mpg.de<mailto:bornmann at gv.mpg.de>
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