Data & Tools

Here you can find data and documentation files from a number of completed IEA studies including TIMSS, PIRLS, ICCS, ICILS, REDSCIVED, TEDS-M, SITES, and the Reading Literacy Study

Data from ongoing studies are added to our repository after the release of the respective international databases.

Software for IEA data

We currently offer two software applications that will allow you to analyze, view, and explore data from our studies: the IDB Analyzer and the Data Visualizer. Please explore our tools page for more information.

Requests for IEA Study Materials

IEA study instruments and other study-related documents are IEA's intellectual property and are copyright protected. It is for this reason that using such materials always requires formal permission from IEA. Visit the Using Study Materials page for more information.

Data Repository

Download data and supporting documentation from IEA studies including TIMSS, PIRLS, ICCS, ICILS, REDS, CIVED, TEDS-M, SITES and the Reading Literacy Study.


We provide free software, supporting publications and research tools to help researchers working with large-scale assessment data.

Using Study Materials

Find details about the process of requesting permission for IEA's study materials, including guidelines for obtaining permission through the official form.