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      Is Open Access

      Revisiting an open access monograph experiment: measuring citations and tweets 5 years later

        , 1 , 2

      Scientometrics

      Springer Netherlands

      Open access, Monographs, Citations, Altmetrics, Tweets

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          Abstract

          An experiment run in 2009 could not assess whether making monographs available in open access enhanced scholarly impact. This paper revisits the experiment, drawing on additional citation data and tweets. It attempts to answer the following research question: does open access have a positive influence on the number of citations and tweets a monograph receives, taking into account the influence of scholarly field and language? The correlation between monograph citations and tweets is also investigated. The number of citations and tweets measured in 2014 reveal a slight open access advantage, but the influence of language or subject should also be taken into account. However, Twitter usage and citation behaviour hardly overlap.

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          Most cited references 19

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          Do Altmetrics Work? Twitter and Ten Other Social Web Services

          Altmetric measurements derived from the social web are increasingly advocated and used as early indicators of article impact and usefulness. Nevertheless, there is a lack of systematic scientific evidence that altmetrics are valid proxies of either impact or utility although a few case studies have reported medium correlations between specific altmetrics and citation rates for individual journals or fields. To fill this gap, this study compares 11 altmetrics with Web of Science citations for 76 to 208,739 PubMed articles with at least one altmetric mention in each case and up to 1,891 journals per metric. It also introduces a simple sign test to overcome biases caused by different citation and usage windows. Statistically significant associations were found between higher metric scores and higher citations for articles with positive altmetric scores in all cases with sufficient evidence (Twitter, Facebook wall posts, research highlights, blogs, mainstream media and forums) except perhaps for Google+ posts. Evidence was insufficient for LinkedIn, Pinterest, question and answer sites, and Reddit, and no conclusions should be drawn about articles with zero altmetric scores or the strength of any correlation between altmetrics and citations. Nevertheless, comparisons between citations and metric values for articles published at different times, even within the same year, can remove or reverse this association and so publishers and scientometricians should consider the effect of time when using altmetrics to rank articles. Finally, the coverage of all the altmetrics except for Twitter seems to be low and so it is not clear if they are prevalent enough to be useful in practice.
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            Google Scholar as a new source for citation analysis

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              Disciplinary differences in Twitter scholarly communication

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                Author and article information

                Contributors
                r.snijder@oapen.org
                Journal
                Scientometrics
                Scientometrics
                Scientometrics
                Springer Netherlands (Dordrecht )
                0138-9130
                17 October 2016
                17 October 2016
                2016
                : 109
                : 3
                : 1855-1875
                Affiliations
                [1 ]OAPEN Foundation, The Hague, The Netherlands
                [2 ]Universiteit Leiden, Leiden, The Netherlands
                Article
                2160
                10.1007/s11192-016-2160-6
                5124034
                27942082
                © The Author(s) 2016

                Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License ( http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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                © Akadémiai Kiadó, Budapest, Hungary 2016

                Computer science

                tweets, altmetrics, citations, monographs, open access

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