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New report analyses usage patterns of academic journal articles -

A new report funded by the Professional & Scholarly Publishing (PSP) division of the Association of American Publishers (AAP) analyses the usage pattern of articles published in over 2800 academic and professional journals. It identifies the 'half-life' of journals - the amount of time it takes for articles in a journal to receive half of their lifetime total downloads - and is the first major broad-based report conducted on this topic.

Dr. Phil Davis, an independent researcher and former science librarian, analysed lifetime usage data from 2812 journals representing the works of 13 scholarly publishers in 10 distinct scholarly disciplines including life sciences, engineering, social sciences and the humanities.

According to the report, journal article usage varies widely within and across disciplines. It takes significant time for journals to experience half of the lifetime downloads ("half-life") of their articles. Articles in the majority of journals receive more than half of their lifetime downloads three or more years after publication. Only 3 percent of journals in all fields have half-lives of 12 months or less. Further, the study noted that health sciences articles have the shortest median half-life of the journals analysed, but still more than 50% of health science journals have usage half-lives longer than 24 months. In fields with the longest usage half-lives, including mathematics and the humanities, more than 50 percent of the journals have usage half-lives longer than 48 months.

In response to the February 2013 OSTP directive, federal agencies are developing plans to support increased public access to research funded by the government. AAP publishers support the OSTP directive and have engaged with agencies and other stakeholders regarding public access. While the study was funded by the PSP Division of AAP in response to interest from federal agencies and others in relevant data, participating publishers submitted the data to Davis individually and the Association had no involvement in Davis's analysis.

Click here to read the original press release.

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