Name: Faculty of 1000 Prime – ratings, reviews, and FFa
Can apply to: Journal articles in biology and medicine.
Metric definition: Ratings for selected articles are provided by F1000 Faculty. Reviews are commissioned and peer-reviewed before publication in F1000 Research. The FFa score is used to rank articles in each discipline.
Metric calculation: When Faculty Members recommend articles, they rate them as ‘Good’, ‘Very Good’ or ‘Exceptional’ (1, 2 or 3 stars, respectively). F1000 Article Factor (FFa) is based on all reviewers’ scores. FFa is calculated based on the highest score assigned by reviewers plus an incremental value added for each additional rating.
Data sources: F1000 Faculty
Appropriate use cases: Can be used an indicator of research quality. FFa scores may be a better indicator for use in clinical practice than citations.
Limitations: The scope of F1000 is limited to a small fraction of the biology and medical literature. As of March, 2017, there were 100,000 articles in F1000, with approximately 1,500 added each month. Thus far, the correlation between Faculty of 1000 recommendations and citations is clear but weak.
Inappropriate use cases: The FFa should not be used as a measure of research impact.
Available metric sources: Faculty of 1000
Transparency: F1000 Reviews are open access, though the Article Recommendation service of F1000Prime is a subscription product.