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...

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Autores principales:	Mike Thelwall, Stefanie Haustein, Vincent Larivière, Cassidy R Sugimoto
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/af3e23e5567e4e12a613e5798e4f9fce
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spelling	oai:doaj.org-article:af3e23e5567e4e12a613e5798e4f9fce2021-11-18T07:44:03ZDo altmetrics work? Twitter and ten other social web services.1932-620310.1371/journal.pone.0064841https://doaj.org/article/af3e23e5567e4e12a613e5798e4f9fce2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23724101/?tool=EBIhttps://doaj.org/toc/1932-6203Altmetric 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.Mike ThelwallStefanie HausteinVincent LarivièreCassidy R SugimotoPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 5, p e64841 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mike Thelwall Stefanie Haustein Vincent Larivière Cassidy R Sugimoto Do altmetrics work? Twitter and ten other social web services.
description	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.
format	article
author	Mike Thelwall Stefanie Haustein Vincent Larivière Cassidy R Sugimoto
author_facet	Mike Thelwall Stefanie Haustein Vincent Larivière Cassidy R Sugimoto
author_sort	Mike Thelwall
title	Do altmetrics work? Twitter and ten other social web services.
title_short	Do altmetrics work? Twitter and ten other social web services.
title_full	Do altmetrics work? Twitter and ten other social web services.
title_fullStr	Do altmetrics work? Twitter and ten other social web services.
title_full_unstemmed	Do altmetrics work? Twitter and ten other social web services.
title_sort	do altmetrics work? twitter and ten other social web services.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/af3e23e5567e4e12a613e5798e4f9fce
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Do altmetrics work? Twitter and ten other social web services.

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