Publisher John Wiley & Sons, Inc., US, has announced that there is a continued increase in the proportion of its journal titles indexed in the Thomson ISI 2011 Journal Citation Reports (JCR). A total of 1,156 Wiley titles (approximately 76 percent) were indexed, representing an increase of 5 percent from the 2010 JCR, and including 43 titles which have been indexed for the first time.
Among these, the newly-launched WIRES title Wiley Interdisciplinary Reviews: Climate Change achieved a one-year Impact Factor of 2.913, making it the fourth highest-ranked title in the Environmental Sciences category. WIRES: Cognitive Science and WIRES: Computational Molecular Science were also indexed for the first time this year.
Among journals receiving an Impact Factor in both 2010 and 2011, 581 Wiley titles (52.4 percent) increased in Impact Factor in 2011. Of these, 194 titles increased by 25 percent or more.
The portfolio is seen to maintain a strong performance across both science and social science, with the second-largest share of titles in the Social Science JCR, and titles indexed in 218 of the 232 JCR subject categories. Across the portfolio, Wiley publications achieved the top rank in 22 JCR subject categories, top three in 93 categories and top 10 a total of 333 times (up from 317 in the 2010 JCR).
Wiley publishes the largest share of titles in 50 JCR subject categories, and overall published 10.9 percent of the journals, 10.7 percent of the articles, and received 11.4 percent of the citations.
Once again, CA-A Cancer Journal for Clinicians, published by Wiley on behalf of the American Cancer Society, was the highest-ranked journal in the JCR – a position that the title has held since 2005. In the 2011 JCR, the journal also became the first title to achieve an Impact Factor over of 100, at 101.780.
Impact factors are a metric that reflect the frequency that peer-reviewed journals are cited by researchers, making them an important tool for evaluating a journal’s quality.
In the 2011 Journal Citation Reports, 322 Wiley health science journals have received an Impact Factor (up from 310 in the 2010 Journal Citation Reports). Nine Health Sciences journals received their first Impact Factor this year, including Nursing in Critical Care with an Impact Factor of 1.082. In total, six Health Sciences publications achieved top category rankings and a further 54 achieved rankings within the top 10 of their subject category, yielding 71 top-10 category rankings in total.
Wiley journals rank within the top 10 of 71 categories (from 43 journals). Five publications achieved the number one spot in their category, including Medicinal Research Reviews (10.700), Mass Spectrometry Reviews (10.461), Computer-Aided Civil and Infrastructure Engineering (3.382), and Acta Crystallographica Section D (published on behalf of the International Union of Crystallography) which doubled its Impact Factor to 12.619 and moved up two ranks.
Ecology Letters achieved an Impact Factor of 17.557 and retained its position as the number one ranking journal in Ecology. This is the eighth consecutive year that the journal has increased its Impact Factor.
Wiley publishes the top ranked journal in four of the Social Science JCR categories and 81 journals which are ranked within the top 10 of their respective categories (achieving 96 top ten rankings). Milbank Quarterly topped categories in both the Science (Health Care Sciences & Services) and Social Science (Health Policy & Services) JCR.
