The TIMSS 2023 Longitudinal International Database (IDB) is now available. 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.
The TIMSS 2023 Restricted-Use Event Log data files, containing detailed records of students’ interactions during the assessment, are now available upon request. The files provide timestamped records of item responses, answer changes, and interactions with the assessment content. Comprehensive documentation is available to support users in understanding the recorded event types.
The International Computer and Information Literacy Study (ICILS) 2023 International Database (IDB) is now publicly available, offering data on computer and information literacy from over 130,000 eighth-grade students, 60,000 teachers, and 5,000 s
The Trends in International Mathematics and Science Study (TIMSS) 2023 international database is now available, offering open access to global fourth- and eighth-grade mathematics and science achievement data, along with contextual information from students, their home, teachers, schools, and countries.