International Association for the Evaluation of Education Achievement (IEA)offers data and documentation files from a number of completed IEA studies. These studies include CIVED, ICCS 2009, ICILS 2013, PIRLS (2001, 2006, 2011), 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).