- The median number of preprint abstract views was 924, and the median number of PDF downloads was 321.
- In total, 18% of the preprints achieved an Altmetric score of more than 20.
- Of 7,750 preprints, 55% were accepted in a peer-reviewed publication within 24 months.
- Altmetric scores were significantly higher in articles in preprints (median 9.5 vs. 3.5).
The differences are probably related, at least in part, to the digital media savvy of preprint authors, Mr. Serghiou suggested. “We speculate that people who publish in bioRxiv may be more familiar with social media methods of making others aware of their work. They tend to be very good at using platforms like Twitter and Facebook to promote their results.”
Despite the high exposure scores, only 10% of bioRxiv articles get any posted comments or feedback – a key raison d’être for using a preprint service.
“Ten percent doesn’t sound like a very robust [feedback], but most journal articles get no comments whatsoever,” Dr. Inglis said. “And if they do, especially on the weekly magazines of science, comments may be from someone who has an ax to grind, or who doesn’t know much about the subject.”
What isn’t measured, in either volume or import, is the private communication a preprint engenders, Dr. Inglis said. “Feedback comes directly and privately to the author through email or at meetings or on the phone. We hear time and again that authors get hundreds of downloads after posting, and receive numerous contacts from colleagues who want to know more, to point out weaknesses, or request collaborations. These are the advantages we see from this potentially anxiety-provoking process of putting a manuscript out that has not been approved for publication. The entire purpose is to accelerate the speed of research by accelerating the speed of communication.”
Dr. Inglis, Dr. Sweet, and Dr. Polka are all employees of their respective companies. Dr. Viny and Mr. Serghiou both reported having no financial disclosures relevant to this article.