Re: Open Access Citation Impact Advantage: weight of the evidence

[Sandy Thatcher <sandy.thatcher@alumni.princeton.edu>]

I hope Heather is not seriously making the claim that truth is 
established by the greater number of articles that purport to 
prove a citation advantage.

What makes sense to me is that the highest-publishing authors are 
located in those institutions that still can afford to subscribe 
to a wide range of periodicals, and citations by them would 
therefore be unaffected by OA.

The greater the cancellation of journals, however, the more even 
those scientists would be affected and the more OA could be 
expected to make a difference.

Sandy Thatcher


At 8:08 PM -0500 2/20/11, Heather Morrison wrote:

>Phil Davis' recent comment to my post, "The Open Access Citation 
>Impact Advantage: weight of the evidence" misses the central 
>point: the weight of the evidence support an open access 
>citation impact advantage.
>
>As A. Ben Wagner points out, there are: 39 articles showing an 
>open access citation impact advantage, in comparison with 7 
>articles either showing no effect or ascribing the citation 
>impact effect to factors unrelated to OA publication. 
>ohttp://www.istl.org/10-winter/article2.html
>
>The list of studies showing an OA citation impact advantage 
>include two of Phil Davis' own, Davis, P.M., (2009) (showing a 
>17% citation impact advantage) and Davis & Fromerth (2007), 
>showing a citation impact advantage.
>
>A Davis study claiming no citation impact advantage (2008) has 
>been widely critiqued as a premature conclusion. This study 
>found a strong download advantage. Other citation impact 
>advantage studies have found that an early citation impact 
>advantage tends to correlate with a later citation impact 
>advantage. This just makes sense; an author must download and 
>read a work before they can cite it, and one must allow time for 
>publication of citing articles.
>
>best,
>
>Heather Morrison, MLIS
>Doctoral Candidate, SFU School of Communication
>http://pages.cmns.sfu.ca/heather-morrison/
>The Imaginary Journal of Poetic Economics
>http://poeticeconomics.blogspot.com