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.

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.