Welcome to the IEA Study Data Repository!
Here you can find data and documentation from completed IEA studies.
At the moment, data are available from CivED, ICCS, ICILS, Joint TIMSS & PIRLS, PIRLS, PrePIRLS, RL II, SITES, TIMSS, TIMSS Advanced and TEDS. Data from future studies will be added as soon as the respective international database is released.
Data is available in SPSS, SAS and RAW format. Data is accompanied by several SPSS and SAS programs for Jackknifing procedures and additional statistical procedures. User Guides to the data, published International Reports and other documentation like codebooks and almanacs are also available for download. It is strongly recommended that you refer to the respective User Guide when working with data.

Copyright notice:
TIMSS, PIRLS, ICCS and ICILS are registered trademarks of IEA. Use of these trademarks without permission of IEA by others may constitute trademark infringement. Furthermore, the website and its contents, together with all online and/or printed publications and restricted used items by TIMSS, PIRLS, ICCS, ICILS and other IEA studies are and will remain copyright of IEA.

All publications and restricted used items by TIMSS, PIRLS and IEA, as well as translations thereof, are for non-commercial, educational and research purposes only. Prior notice is required when using IEA data sources for assessments or learning materials. IEA reserves the right to refuse copy deemed inappropriate or not properly sourced.

Commercial exploitation, distribution, redistribution, reproduction and/or transmitting in any form or by any means, including electronic or mechanical methods such as photocopying, information storage and retrieval system of these publications, restricted used items, translations thereof and/or part thereof are prohibited unless written permission has been provided by IEA.

When quoting and/or citing from one or more publications and/or restricted used items from TIMSS, PIRLS and IEA for the sake of educational or research purposes, please print an acknowledgment of the source, including the year and name of that publication and/or restricted used item. Please use the following acknowledgment as an example:

SOURCE: TIMSS 2007 Assessment. Copyright © 2009 International Association for the Evaluation of Educational Achievement (IEA). Publisher: TIMSS & PIRLS International Study Center, Lynch School of Education, Boston College.

Please note that citing without naming the source can or will constitute plagiarism for which you can and will be held accountable.

To request permission to reuse, reproduce, or translate IEA material, please fill out the permission request form.

Please note that the website and its contents, together with all online and/or printed publications and restricted used items (‘works’) by TIMSS, PIRLS and IEA, were created with the utmost care. However, the correctness of the information cannot be guaranteed at all times and IEA cannot and will not be held responsible or liable for any damages that may arise from the use of these resources, nor will IEA be liable for the wrongful use and/or interpretation of its works.

Please be advised that IEA cannot authorize the use of texts or items that include third-party copyrighted materials (e.g., reading passages, photographs, images). 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.

You will need the Acrobat Reader and the IEA IDB Analyzer to work with your downloaded files:

get Acrobat Reader get IDB Analyzer get WIN RAR

Accessing TEDS-M Data

Data from the TEDS-M Study is available for free directly from the IEA Secretariat. Given the sensitive nature of the data contained in the TEDS-M database, and risks of disclosing personal information of the participants, you will need to complete an
"Affidavit of Nondisclosure and User Agreement for Using the TEDS-M 2008 Databases".

Please print and complete the form manually and send it (scanned copy) by email or fax to the IEA Secretariat:

Email: department@iea.nl
Fax: +31 20 420 7136

You can download the User Guide and other publications, free of charge, from http://www.iea.nl/teds-m.html.

TIMSS 2015 Restricted Use Data

The TIMSS 2015 Restricted Use Data will only be made available upon special request by researchers. It contains all data freely available in the TIMSS 2015 Public Use Data, plus the additional variables listed below.

Researchers who want to use the additional data below need to formally apply and provide reasoning why they would need the additional data. They need to agree not to disclose any individuals.

If you are interested to work with the Restricted Use Data will need to apply using the IEA Restricted Use Data Application Form. In addition, you need to sign the Restricted Use Agreement. Please download, complete and sign both the application form and the agreement, and send it to RandA@iea-dpc.de.

Application Form:
Restricted Use Data Application Form

Restricted Use Agreement

The application will be reviewed by IEA staff who will decide upon access to the data. Applicants will get feedback within 3-4 weeks. In case access is granted to the applicant, the IEA will provide details on how to access the restricted use data.

These are the additional variables available in the Restricted Use Data:

Sampling/ Identification Variables

Variable Description
ITBIRTHY Student birth year
ITBIRTHM Student birth month
ITDATEY Year of testing
ITDATEM Month of testing
WGTFACx Weight factors
WGTADJx Weight adjustments

School Questionnaire

Question Nr Question
1 Total Enrollment
2 Enrollment <Target Grade>

3. Select Format:
  • SPSS
  • SAS
  • SASExport

4. Select Documentation:
  • Codebooks
  • Reports
  • UserGuide
  • National Questionnaire
  • Programs
  • National Context Survey Data
  • Almanacs
  • Items
  • User Guide
  • TCMA