News

We publish news and recent information for all ILSA studies, including but not limited to launches of reports, releases of data, calls for proposals, and also academic internships and job opportunities. An overview of all news can be found here, news related to a particular ILSA study can be found on the sub-pages of the respective study.

Release of IDB
Coming Soon: TIMSS 2023 Longitudinal International Database

The TIMSS 2023 Longitudinal International Database (IDB) will be released on February 12, 2026. As the first longitudinal extension of TIMSS, the study followed students from Grade 4 to Grade 5 and from Grade 8 to Grade 9. The database contains student achievement and process data, as well as contextual information at the student, home, teacher, school, and national levels collected in 2023 and 2024. Comprehensive documentation will be provided to support secondary data analyses.

IELS 2025: International Report to Be Released in May

The international results of the International Early Learning and Child Well-being Study (IELS) will be released on 5 May 2026, presenting internationally comparable data on the learning and well-being of 5-year-old children attending Early Childhood Education and Care (ECEC) centres and/or schools. The study directly measures emergent literacy and numeracy, executive function, as well as social and emotional skills. In addition, it collects information on each participating child through questionnaires completed by parents and staff.