A longitudinal study of Google Scholar coverage between 2012 and 2013

Harzing, Anne-Wil ORCID logoORCID: https://orcid.org/0000-0003-1509-3003 (2014) A longitudinal study of Google Scholar coverage between 2012 and 2013. Scientometrics, 98 (1) . pp. 565-575. ISSN 0138-9130 [Article] (doi:10.1007/s11192-013-0975-y)

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Harzing (2013) showed that between April 2011 and January 2012, Google Scholar has very significantly expanded its coverage in Chemistry and Physics, with a more modest expansion for Medicine and a natural increase in citations only for Economics. However, we do not yet know whether this expansion of coverage was temporary or permanent, nor whether a further expansion of coverage has occurred. It is these questions we set out to respond in this research note.

We use a sample of 20 Nobelists in Chemistry, Economics, Medicine and Physics and track their h-index, g-index and total citations in Google Scholar on a monthly basis. Our data suggest that - after a period of significant expansion for Chemistry and Physics - Google Scholar coverage is now increasing at a stable rate. Google Scholar also appears to provide comprehensive coverage for the four disciplines we studied. The increased stability and coverage might make Google Scholar much more suitable for research evaluation and bibliometric research purposes than it has been in the past.

Item Type: Article
Additional Information: Online publication date: 05 Mar 2013
Keywords (uncontrolled): Google scholar, Citations, Web of science, h-Index, g-Index, Social sciences
Research Areas: A. > Business School > International Management and Innovation > International and Cross-cultural Management group
Item ID: 14504
Notes on copyright: This is a post-peer-review, pre-copyedit version of an article published in Scientometrics. The final authenticated version is available online at: http://dx.doi.org/10.1007/s11192-013-0975-y
Useful Links:
Depositing User: Anne-Wil Harzing
Date Deposited: 26 Mar 2015 10:23
Last Modified: 29 Nov 2022 23:52
URI: https://eprints.mdx.ac.uk/id/eprint/14504

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