[GOAL] Re: Update on Ulrichs estimate of total number of active peer-reviewed journals: 55, 311

[Heather Morrison]

The difference in the numbers is a matter of deduplicating different formats, that is, the 55,311 includes separate records for print and electronic journals.

In December 2011 I ran an Ulrich's search, did some deduplication, and came up with a total of 26,746 active, academic / scholarly peer reviewed journals. This should be considered an estimate rather than an exact figure, because my deduplication method is not perfect. 

My method and calculations are explained in this brief appendix to my draft thesis:
http://pages.cmns.sfu.ca/heather-morrison/appendix-c-how-many-active-scholarly-peer-reviewed-journals/

In previous years, I was able to do an Ulrich's search and come up with this number without the deduplication exercise. It's too bad this function doesn't seem to be there any more.

best,

Heather Morrison, MLIS
Doctoral Candidate, Simon Fraser University School of Communication
http://pages.cmns.sfu.ca/heather-morrison/
The Imaginary Journal of Poetic Economics
http://poeticeconomics.blogspot.com


On 2012-08-03, at 2:51 PM, Stevan Harnad wrote:

> 
> On 2012-08-03, at 4:53 PM, Sally Morris wrote:
> 
>> I find this figure very surprising.  What appears to be the same search,
>> carried out this past March, came up with a (to me) much more credible
>> figure of 27,566.
> 
> I found it surprising too. That's why I'm asking others who have 
> access to Ulrichs to repeat the search and let us know.
> 
> Stevan
> 
>> Sally Morris
>> South House, The Street, Clapham, Worthing, West Sussex, UK  BN13 3UU
>> Tel:  +44 (0)1903 871286
>> Email:  sally at morris-assocs.demon.co.uk
>>  
>> 
>> From: goal-bounces at eprints.org [mailto:goal-bounces at eprints.org] On Behalf Of Stevan Harnad
>> Sent: 03 August 2012 20:08
>> To: Global Open Access List (Successor of AmSci)
>> Cc: LibLicense-L Discussion Forum
>> Subject: [GOAL] Update on Ulrichs estimate of total number of active peer-reviewed journals: 55, 311
>> 
>> For years now, I've just been re-using an old Ulrich's estimate of about 25,000 for the total number of active peer-reviewed journals.
>> 
>> Prompted by a recent query from someone, I've checked again, and -- unless I've made a mistake in my search -- the number now seems to have doubled to 55,311.
>> 
>> The parameters I used to get this figure were (1) Active, (2) Journal, (3) Academic/Scholarly, (4) Refereed/Peer-reviewed, 
>> 
>> A further breakdown shows that of these 55,311 active peer reviewed journals,
>> 
>> 23,527 (43%) are available online
>> 
>> 9,354 (17%) are indexed in Thomson-Reuters-ISI's Journal Citation reports
>> 
>> 6,962 (13%) are open access journals (freely available online) (Gold OA, presumably not including Hybrid Gold).
>> 
>> 769 (11%) of the 9,354 Thomson-Reuters-ISI-indexed journals are open access journals
>> 
>> --
>> 
>> According to the last estimate of journals indexed by SHERPA/ROMEO (which does not include all the journals indexed by Ulrichs, but does include most of the top journals indexed by Thomson-Reuters-ISI):
>> 
>> 60% of journals recognize the author's right to provide immediate, un-embargoed open access upon self-archiving their final drafts in their institutional repositories.
>> 
>> --
>> 
>> It would be helpful if others could check and confirm these figures.
>> 
>> Stevan Harnad
>> _______________________________________________
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>> GOAL at eprints.org
>> http://mailman.ecs.soton.ac.uk/mailman/listinfo/goal
> 
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