National Institute for Educational Policy Research

National Institute for Educational Policy Research

Open Access statistics for National Institute for Educational Policy Research, Japan, covering academic research published from 2000 to 2025.

Open Access statistics for National Institute for Educational Policy Research, Japan, covering academic research published from 2000 to 2025. Read More.


Open Access Percentage

63%


Total
Publications

216


Total Open
Publications

136


Total
Citations

2.1K


Open Access
Percentage

63%


Total
Publications

216


Total Open
Publications

136


Total
Citations

2.1K

Website

download

Breakdown

46% 12% 5% 37%

Publisher Open

46%

Both

12%

Other Platform Open

5%

Closed

37%

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

0246810121416Total Publications
20002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025

Open

Closed

Publisher Open

17%OA Journal

OA Journal 17%

21

Hybrid 11%

14

No Guarantees 72%

88

Other Platform Open

Institution 69%

25

Domain 33%

12

Preprint 11%

4

Other Internet 8%

3

Public 3%

1

Other Platform Locations

Name

Platform Type

Publications

National Institute of Informatics
Institution
14
PubMed Central
Domain
11
doaj.org OAI-PMH Repository
Institution
10
Research Square
Preprint
3
Europe PMC
Domain
3
DOI
Other Internet
3
Kyoto University
Institution
2
University of Tsukuba
Institution
1
University of Oslo
Institution
1
University of North Texas
Institution
1
1 / 2

Data updated 12 August 2026

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