Center for Assessment

Center for Assessment

Open Access statistics for Center for Assessment, United States, covering academic research published from 2000 to 2025.

Open Access statistics for Center for Assessment, United States, covering academic research published from 2000 to 2025. Read More.


Open Access Percentage

44%


Total
Publications

2.2K


Total Open
Publications

983


Total
Citations

77K


Open Access
Percentage

44%


Total
Publications

2.2K


Total Open
Publications

983


Total
Citations

77K

Website

download

Breakdown

18% 19% 7% 56%

Publisher Open

18%

Both

19%

Other Platform Open

7%

Closed

56%

Percentage of Open Access over time

0%10%20%30%40%50%60%70%80%90%100%
20002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025

Publisher Open

Both

Other Platform Open

Closed

Volume of Open Access over time

020406080100120140160180200220240Total Publications
20002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025

Open

Closed

Publisher Open

44%OA Journal

OA Journal 44%

358

Hybrid 28%

229

No Guarantees 28%

232

Other Platform Open

Domain 57%

336

Institution 56%

330

Other Internet 8%

46

Preprint 6%

34

Public 2%

14

Other Platform Locations

Name

Platform Type

Publications

PubMed Central
Domain
340
doaj.org OAI-PMH Repository
Institution
169
Unknown Repository
Other Internet
33
Europe PMC
Domain
19
DOI
Other Internet
18
National Institute of Informatics
Institution
16
medRxiv
Preprint
16
Harvard University
Institution
14
California Digital Library
Institution
13
Figshare
Public
12
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Data updated 12 August 2026

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