Citation analysis and impact factor trends in the Ergonomics Journal List, 1975–2007


  • Derek R. Smith

    Corresponding author
    1. WorkCover New South Wales Research Centre of Excellence, School of Health Sciences, Faculty of Health, University of Newcastle, Ourimbah, Australia
    • WorkCover New South Wales Research Centre of Excellence, University of Newcastle, Ourimbah, New South Wales 2258, Australia. Fax: 612-4348-4013
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The current study sought to investigate and analyze citation-based trends in the field of human factors and ergonomics over a relatively long period of time. Journals were selected from the Ergonomics Journal List (EJL), originally formulated by Dul and Karwowski in 2004. Data were extracted from the Thomson Reuters Journal Citation Reports via a custom order in 2008. Various bibliometric indicators were examined and analyzed, including total citation counts, cited half-lives, immediacy indices, and journal impact factors. Overall, the results suggest that, although citation counts have increased in recent years, trends were less clear regarding cited half-lives and immediacy indices. Impact factors rose over time, however, with individual journals increasing their scores between 200% and 613%, with an overall increase of 416% for the EJL between 1975 and 2007. © 2009 Wiley Periodicals, Inc.