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CASRAI

Definition · Plain-language

Altmetric

Altmetric is a data tracking system that measures and monitors the online attention, discussions, and policy citations that individual research outputs receive across digital platforms.

CASRAI research-methods explainer — Altmetric

The step most authors miss

Doing CRediT right? Don’t stop at the statement.

A CRediT statement credits you inside one paper. The recognition CRediT was built for happens when those roles are tied to you, persistently. Sign in with your ORCID — free — and claim your CRediT contributions on casrai.org, the home of the standard. They become a verified, portable part of your identity, not a line that disappears into one PDF.

Free: claim your contributions, then export a journal-ready CRediT statement, schema.org structured data, JATS XML, CSV or BibTeX — and preview your public profile. A membership publishes that profile publicly and verifies the journals you serve.

Alternative metrics vs traditional citations

Traditional metrics like the h-index evaluate research based on citation counts within peer-reviewed journals, a process that can take years. Alternative metrics, or altmetrics, track the immediate public engagement a paper receives after publication. By monitoring digital media, altmetrics reveal how research spreads through news outlets, policy briefs and public discussions, capturing the broader societal influence of a work. This immediate feedback helps researchers understand how their findings are received outside the academic community, allowing them to track real-time engagement and identify public interest trends long before formal peer-reviewed citations begin to accumulate in journals, which is crucial. This rapid evaluation tool is particularly valuable for timely research fields like public health and environmental science.

The Altmetric Attention Score and doughnut

Mentions are aggregated into the Altmetric Attention Score, displayed as a multi-coloured doughnut badge. Each colour represents a different source of attention: red for news, blue for Twitter, green for blogs and yellow for Wikipedia. The numerical score is weighted, meaning a mention in a national news article or a government policy document counts more than a tweet, reflecting the influence of the source. This visual system allows researchers to quickly identify where their work is making an impact. By checking the underlying data, authors can see who is discussing their research and in what context, providing qualitative insights and analytics.

Regional and researcher applications

Academics use Altmetric data to demonstrate the real-world impact of their work when applying for grants, promotions or jobs. Universities use the platform to monitor how their institutional research is discussed globally. Publishers embed the badges on article pages, providing readers with instant feedback on public engagement and helping editors promote high-interest content. By capturing mentions in clinical guidelines and policy papers, altmetrics help researchers demonstrate the societal value of their work to funding bodies, which is increasingly important in national research assessments, institutional reviews, funding reports, and public accountability reports. This broad utility helps researchers connect their academic work directly with public benefits and institutional mission goals.

Key facts

At a glance

  • Tracks real-world engagement with research outputs across digital platforms
  • Monitors diverse sources including news, policy papers, Wikipedia and social media
  • Displays attention using a colourful doughnut badge and weighted numerical score
  • Captures immediate post-publication impact, bypassing the lag of journal citations
  • Assists in showing societal, clinical and policy relevance for funding bodies
  • Integrates directly with publisher web pages and institutional repositories

Common misconceptions

What people often get wrong

Often heard: A high Altmetric score is proof of a study’s high scientific quality.

Actually: It measures attention, not quality. A paper can receive a high score due to public controversy, viral social media posts, or flawed findings.

Often heard: Altmetric only tracks tweets and blogs, ignoring formal citations.

Actually: It actively monitors citations in government policy documents, clinical guidelines and international patent registries, capturing deep structural impact.

Common questions

FAQ

How is the Altmetric Attention Score calculated?+

The score is a weighted count of the attention a research output receives. News mentions carry the highest weight, followed by policy documents, blog posts, Wikipedia citations and social media mentions.

Can any research output get an Altmetric score?+

Yes, provided the output has a unique identifier like a DOI, handle or PubMed ID, and is mentioned in a source monitored by Altmetric.

Referenced across the research world

University of Cambridge logoColumbia University logoUniversity of Edinburgh logoHarvard University logoUniversity of Oxford logoPrinceton University logoStanford School of Medicine logoUniversity College London logoORCID logoCrossref logoUniversity of Cambridge logoColumbia University logoUniversity of Edinburgh logoHarvard University logoUniversity of Oxford logoPrinceton University logoStanford School of Medicine logoUniversity College London logoORCID logoCrossref logo
  • University of Cambridge logo
  • Columbia University logo
  • University of Edinburgh logo
  • Harvard University logo
  • University of Oxford logo
  • Princeton University logo
  • Stanford School of Medicine logo
  • University College London logo
  • ORCID logo
  • Crossref logo

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