Étiquette : Ashraf Maleki

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Diverse roles of twitter in research evaluation: original tweets and retweets capture different types of engagements with scholarly articles

Authors :  Ashraf Maleki, Kim Holmberg

Altmetrics need to be more critically assessed in terms of the extent to which they reflect impact and quality of research compared to popularity or mere attention. Twitter (now rebranded as X) is a popular platform to, among other things, discuss and share scientific articles.

Earlier altmetric studies have often focused on investigating whether the number of tweets mentioning scientific articles could be used as an indicator of scientific impact or attention, with results showing weak to moderate correlations with citation counts. But all tweets may not be equal, as original tweets and retweets may reflect different levels of engagement and impact. Using a dataset of over 330,000 PLOS publications, this study explores whether these two forms of Twitter activity correlate differently with traditional citation metrics and how these relationships vary across disciplines.

The findings showed the correlation between citations and original tweets was consistently higher than that between citations and retweets and significant weak or moderate, but higher in Social Science and Humanities than in Natural Science, Engineering and Medicine fields. Also, including zero citation counts improved the correlation coefficients for original tweets, but reduced that of retweets.

This indicates that original tweets may be more aligned with citation counts as an indicator of scholarly impact, whereas retweets might reflect broader dissemination and popularity. In conclusion, tweets and retweets are different altmetric indicators and should be considered as two different metrics and analysed separately.

URL : Diverse roles of twitter in research evaluation: original tweets and retweets capture different types of engagements with scholarly articles

DOI : https://doi.org/10.1093/reseval/rvag014

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Who Are Tweeting About Academic Publications? A Cochrane Systematic Review and Meta-Analysis of Altmetric Studies

Authors : Ashraf Maleki, Kim Holmberg

Previous studies have developed different categorizations of Twitter users who interact with scientific publications online, reflecting the difficulty in creating a unified approach. Using Cochrane Review meta-analysis to analyse earlier research (including 79,014 Twitter users, over twenty million tweets, and over five million tweeted publications from 23 studies), we created a consolidated robust categorization consisting of 11 user categories, at different dimensions, covering most of any future needs for user categorizations on Twitter and possibly also other social media platforms.

Our findings showed, with moderate certainty, covering all the earlier different approaches employed, that the predominant Twitter group was individual users (66%), responsible for the majority of tweets (55%) and tweeted publications (50%), while organizations (22%, 27%, and 28%, respectively) and science communicators (16%, 13%, and 30%) clearly contributed smaller proportions.

The cumulative findings from prior investigations indicated a statistically equal extent of academic individuals (33%) and other individuals (28%). While academic individuals shared more academic publications than other individuals (42% vs. 31%), they posted fewer tweets overall (22% vs. 30%), but these differences do not reach statistical significance.

Despite significant heterogeneity arising from variations in categorization methods, the findings consistently indicate the importance of academics in disseminating academic publications.

URL : https://arxiv.org/abs/2312.06399

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Why does library holding format really matter for book impact assessment?: Modelling the relationship between citations and altmetrics with print and electronic holdings

Author : Ashraf Maleki

Scholarly books are important outputs in some fields and their many publishing formats seem to introduce opportunities to scrutinize their impact. As there is a growing interest in the publisher-enforced massive collection of ebooks in libraries in the past decade, this study examined how this influences the relationship that library print holdings (LPH), library electronic holdings (LEH) and total library holdings (TLH) have with other metrics.

As a follow up study to a previous research on OCLC library holdings, the relationship between library holdings and twelve other metrics including Scopus Citations, Google Books (GB) Citations, Goodreads engagements, and Altmetric indicators were examined for 119,794 Scopus-indexed book titles across 26 fields.

Present study confirms the weak correlation levels observed between TLH and other indicators in previous studies and contributes additional evidence that print holdings can moderately reflect research, educational and online impact of books consistently more efficient than eholdings and total holdings across fields and over time, except for Mendeley for which eholdings slightly prevailed.

Regression models indicated that along with other dimensions, Google Books Citations frequently best explained LPH (in 14 out of 26 fields), whereas Goodreads User counts were weak, but the best predictor of both LEH and TLH (in 15 fields out of 26), suggesting significant association of eholdings with online uptake of books.

Overall, findings suggest that inclusion of eholdings overrides the more impactful counts of print holdings in Total Library Holdings metric and therefore undermines the statistical results, whilst print holdings has both statistically and theoretically promising underlying assumptions for prediction of impact of books and shows greater promise than the general Library Holding metric for book impact assessment.

Thus, there is a need for a distinction between print and electronic holding counts to be made, otherwise total library holding data need to be interpreted with caution.

URL : Why does library holding format really matter for book impact assessment?: Modelling the relationship between citations and altmetrics with print and electronic holdings

DOI : https://doi.org/10.1007/s11192-021-04239-9