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. 2020 Dec 1;5:16. doi: 10.1186/s41073-020-00101-3

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© The Author(s) 2020

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 6 — Subjective assessment by article source. a Clarity of title/abstract for the independent samples comparison. Scores were given as an answer to “Do the title and abstract provide a clear idea of the article’s main findings?”. Mean ± S.D.: bioRxiv = 3.9 ± 0.6, n = 72; PubMed = 4.3 ± 0.7, n = 72. 95% C.I. [0.2–0.6]. Student’s t-test: t = 3.61, p = 0.0004. b Clarity of title/abstract for the paired sample comparison. Mean ± S.D.: Preprint = 4.0 ± 0.6, n = 56; Peer-reviewed = 4.1 ± 0.5. 95% C.I. [− 0.03, 0.4]. Paired t-test: t = 1.66, p = 0.10. Right panel shows the differences between scores in preprint and peer-reviewed versions. c Easiness to extract information for the independent samples comparison. Scores were given as an answer to “Was the required information easy to find and extract from the article?”. Mean ± S.D.: bioRxiv = 3.4 ± 0.8, n = 72; PubMed = 4.2 ± 0.6. 95% C.I. [0.5, 1.0]. Student’s t-test: t = 6.22, p = 5.1 × 10^− 9. d Easiness to extract information for the paired sample comparison. Mean ± S.D.: Preprint = 3.5 ± 0.7, n = 56; Peer-reviewed = 4.0 ± 0.6, n = 56. 95% C.I. [0.2, 0.6]. Paired t-test: t = 4.12, p = 0.0001. Right panel shows changes in score from preprint to peer-reviewed versions