The IEA Data Repository

Our data repository offers data and documentation files from a number of completed IEA studies. These studies include CIVED, ICCS (2009, 2016), ICILS 2013, PIRLS (2001, 2006, 2011, 2016), prePIRLS 2011, the Reading Literacy Study (for countries that administered the test in both 1991 and 2001), TEDS-M, SITES (Module 1, 2006), TIMSS (1995, 1999, 2003, 2007, 2011, 2015), and TIMSS Advanced (1995, 2008, 2015). Data from ongoing studies are added to our repository after the release of the respective international databases.

Please click here to log in and gain access to our data.

Software for IEA data

We currently offer two software applications that will allow you to analyze, view, and explore data from our studies. They are the IDB Analyzer and the Data Visualizer. You can also access data through the National Center for Education Statistics (NCES) International Data Explorer. Select the software you prefer and obtain the data you need.

IEA IDB Analyzer

Used to combine and analyze data from all IEA’s large-scale assessments, as well as analyze data from most major large-scale assessment surveys, including those from the US National Assessment of Educational Progress (NAEP), and those conducted by the Organisation for Economic Co-operation and Development (OECD).

The IEA IDB Analyzer installation requires the .NET Framework version 4.0 or above. If you intend to install the IDB Analyzer on a machine with Windows 8 or earlier, please make sure you have installed the .NET Framework on your system. The .NET Framework can be obtained from the following website:

You can find video tutorials on how to use the IEA IDB Analyzer here.

Data Visualizer

Enables you to visualize trends in TIMSS and PIRLS data over time. Also lets you visualize data in the form of graphs and world or regional maps.

NCES International Data Explorer

Developed by the NCES, this software lets you explore TIMSS and PIRLS data.


If you want to contact one of our experts, please email secretariat [at] (subject: Seeking%20contact%20with%20IEA%20data%20expert)