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The ILSA Gateway provides a single point of entrance to the major international large-scale assessments (ILSAs) in education conducted by different organizations. Comprehensive background information for each ILSA is presented in a standardized format supplemented by direct links to data and documents at the various external study websites. The IEA laid the foundation for the site and defined the type of content to be presented here; the specific study content as such was developed in close collaboration with the directors and initiators of the various studies.

Copyrights and/or other intellectual property rights for the ILSA Gateway, including but not limited to information architecture, design, and website “look and feel” are exclusively owned by the IEA. All trademarks referenced on the gateway, including those of the various ILSAs, are the property of their respective owners. Please be advised that the IEA cannot authorize the use of texts or items that include third-party copyrighted materials. Users of any third-party copyrighted materials must first seek and be granted copyright permission from the owner of the content as indicated in the copyright citation line.

Reproduction of the gateway and/or its contents in any manner is strictly prohibited. Making available and/or distributing any original or modified, expanded, abridged, or translated versions of the information or parts thereof provided on the gateway without the prior written permission of the IEA or the respective copyright owners is prohibited. If you have any doubts as to whether your use of the ILSA Gateway is in compliance with copyright laws, please contact us.

When quoting and/or citing directly from ILSA Gateway pages for educational or research purposes as permitted under the relevant local copyright laws, please include a printed acknowledgment of the source. When quoting and/or citing from one or more publications for which the ILSA Gateway provides external links, please follow the copyright rules and intellectual property policy of study and/or external website owners.

All copyrights and/or other rights of intellectual property vested in the ILSA Gateway are exclusive property of International Association for the Evaluation of Educational Achievement.

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Please note that the ILSA Gateway and its contents were created with the utmost care. The IEA, however, assumes no responsibility for the topicality, correctness, completeness, or quality of the information provided. Also, the IEA cannot be held responsible and will not be liable for the wrongful use and/or interpretation of the information presented on the gateway, nor will the IEA be liable for any damages that may arise from the use of the gateway as such. The IEA accepts no liability for unauthorized use of the website or its content.

The IEA expressly reserves the right to change, supplement, or delete parts of the pages or the entire website without prior notice, or to discontinue the site temporarily or permanently.

The IEA is not responsible for the content of external websites or for documents or other materials of third parties that are visibly linked to the ILSA Gateway.



We would like to thank the following companies and freelancers who made important contributions to this platform:

We also wish to thank photographer Ranjithsiji for enabling us to use his work (“Books on Library”) through Creative Commons licensing. All other images were purchased from the following sources and licensed for use: fotolia,, dreamstime, and shutterstock.