The San Francisco declaration on research assessment. Incentives and performance: governance of research organizations. A number of papers have been published in high-impact journals with Impact Factor >20 (New England Journal of Medicine, Nature, Nature Genetics. In: Welpe I, Wollersheim J, Ringelhan S, Osterloh M, editors. The use of bibliometrics for assessing research: possibilities, limitations and adverse effects. doi: 10.1371/journal.pone.0173152īecker Medical Library Model for Assessment of Research Impact. Measuring scientific impact beyond academia: An assessment of existing impact metrics and proposed improvements. Ravenscroft J, Liakata M, Clare A, Duma D. Altmetric scores: An early indicator of research impact. The EMPIRE Index provides a richer assessment of publication value than standalone traditional and alternative metrics and may enable medical researchers to assess the impact of publications easily and to understand what characterizes impactful research. Analysis of NEJM 'notable articles' showed that observational studies had the highest total impact and component scores, except for societal impact, for which surgical studies had the highest score. Analysis of fresh metrics collected 1 year after the initial dataset, including an independent sample, showed that scholarly and societal impact scores continued to increase, whereas social impact scores did not. The social impact component correlated strongly with the Altmetric Attention Score and the scholarly impact component correlated modestly with CiteScore, with the societal impact component providing unique insights. Predictor metrics are defined to estimate likely long-term impact. These are averaged to provide a total impact score and benchmarked so that a score of 100 equals the mean scores of Phase III clinical trial publications in the New England Journal of Medicine (NEJM) in 2016. The EMPIRE Index comprises three component scores (social, scholarly, and societal impact), each incorporating related altmetrics indicating a different aspect of engagement with the publication. Metric weighting and grouping were informed by a statistical analysis of 2891 Phase III clinical trial publications and by a panel of stakeholders who provided value assessments. We created the EMPIRE (EMpirical Publication Impact and Reach Evaluation) Index, a value-based, multi-component metric framework for medical publications. The wide variety of altmetrics can make interpretation and comparative assessment difficult available summary tools are either narrowly focused or do not reflect the differing values of metrics from a stakeholder perspective. Article-level measures of publication impact (alternative metrics or altmetrics) can help authors and other stakeholders assess engagement with their research and the success of their communication efforts.
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