IEA Progress in International Reading Literacy Study (PIRLS)
PIRLS assesses the reading literacy of fourth-grade pupils on a five-year cycle that began in 2001; the 2021 round began the move to digital assessment, and a 2026 round is in progress.
International Datasets
Large-scale international and national datasets that include questionnaires for principals, teachers or schools, with notes on what they offer researchers in educational administration and how to access them.
IEA Trends in International Mathematics and Science Study (TIMSS)
TIMSS has measured mathematics and science achievement at grades 4 and 8 every four years since 1995.
NCES National Teacher and Principal Survey (NTPS)
The National Teacher and Principal Survey is a nationally representative sample survey of public and private elementary and secondary schools in the United States.
OECD Programme for International Student Assessment (PISA): School Questionnaire
PISA assesses 15-year-olds in reading, mathematics and science on a three-year cycle, although the round planned for 2021 was held in 2022 because of the pandemic.
OECD Teaching and Learning International Survey (TALIS)
TALIS is the OECD’s international survey of teachers and school principals, conducted in 2008, 2013, 2018 and 2024.