The International Association for the Evaluation of Educational Achievement (IEA) is an independent, international cooperative of national research institutions and governmental research agencies. It conducts large-scale comparative studies of educational achievement and other aspects of education. Since its founding in 1958, IEA has conducted more than 30 research studies of cross-national achievement. IEA studies focus on subjects relating to mathematics, science, reading, civic and citizenship education, computer and information literacy, and teacher education, among others.