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PNAS Article and Journal Metrics
PNAS Article and Journal Metrics
As a signatory to the San Francisco Declaration on Research Assessment, PNAS is invested in improving the evaluation of scholarly research outputs. We track a range of article and journal metrics, with the goal of providing as rich a view of article and journal performance as possible.
Article Metrics and Authorship
Metrics
PNAS provides several article-level metrics for all articles. Click on the “Info & Metrics” tab of any PNAS article to see its Altmetric score, citation counts, and usage data, including downloads of the abstract, full text, and PDF.
Authorship
PNAS encourages responsible authorship practices and provides information about the specific contributions of each author, which are freely available in an article footnote. Learn more about author requirements in PNAS Editorial and Journal Policies.
2019 Peer Review Metrics
Submission to initial decision: The average time for the Editorial Board’s initial decision (decline without further review) was 8 days.
Submission to first full-review decision: Excluding papers declined by the Board at the initial screening, our average turn time for a full review was 44 days.
Submission to publication: From submission to issue publication was an average of 181 days. Acceptance rate: The acceptance rate for Direct Submissions in 2019 was 14%.
Acceptance rate: The acceptance rate for Direct Submissions in 2019 was 14%.
Journal Metrics
Eigenfactor and Article Influence Metrics
2019 Metrics | |
---|---|
Eigenfactor Score | 0.93189 |
Eigenfactor Rank in Multidisciplinary Sciences | 6/71 |
Article Influence Score | 4.448 |
Learn about these metrics and how they are calculated.
Scopus Metrics
2019 Metrics | |
---|---|
CiteScore | 15.7 |
CiteScore Percentile | 96% |
CiteScore Rank in Multidisciplinary Sciences | 4/111 |
SJR | 5.165 |
SNIP | 2.689 |
Learn about CiteScore, SJR, and SNIP metrics and how they are calculated
Journal Impact Factor and Associated Metrics
2019 Metrics | |
---|---|
Impact Factor | 9.412 |
Ranking in Multidisciplinary Sciences | 8/71 |
Impact Factor without Self-Cites | 9.158 |
Five-Year Impact Factor | 10.620 |
Total Cites | 676,425 |
Immediacy Index | 1.957 |
Cited Half-Life | 10.0 |
Learn about these metrics and how they are calculated.
Citation distribution
The Journal Impact Factor is a journal-level metric that does not adequately represent the distribution of citations among individual articles in the journal. This chart shows the distribution of 2019 citations to all articles published in PNAS in 2017 and 2018, the two years included in the 2019 Impact Factor. Learn about this distribution chart and how it is generated.
Google Scholar Metrics
2019 Metrics | |
---|---|
H5-Index | 228 |
H5-Median | 299 |
Rank in Health and Medical Sciences (General) ) | 3 |
Rank in Health & Medical Sciences | 4 |
Rank in Life Sciences & Earth Sciences (General) | 676,425 |
Rank in Life & Earth Sciences | 5 |
Learn about these metrics and how they are calculated.
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