DATA IN ACTION
TIMSS 2023 This eighth cycle of TIMSS continues to be the flagship for assessing global trends in mathematics and science achievement among fourth and eighth graders. The 2023 cycle marks a historic shift—it is the first fully computer- based assessment. Fourth- and eighth-grade students across over 60 participating countries engaged in the computer- based assessments, which incorporated a wide range of item types and interactive features and provided opportunities to demonstrate their ability to apply mathematical and scientific concepts to real-world contexts using digital tools that reflect the reality of students’ learning environments. This December, the TIMSS 2023 international results will be released at an in-person event hosted by the UAE’s Ministry of Education in Dubai. At IEA’s international release event, stakeholders such as researchers, educators, policymakers, and the press will convene to celebrate the results. Online livestreaming of the release will be available. The release of the international database in February 2025 will allow researchers to explore the data and share valuable insights into how students’ mathematics and science achievement can be contextualized. Among the many groups that will spend efforts to add to the rich research base are researchers collaborating at the TIMSS and PIRLS International Study Center. In an in-depth research report series published under the title TIMSS Insights , the study
center will present additional analyses using data from TIMSS 2023 around issues such as environmental knowledge and attitudes, teaching practices, and school climate. TIMSS 2023/2024 LONGITUDINAL Beyond cross-sectional analyses, TIMSS 2023 invited countries to participate in the optional TIMSS 2023 Longitudinal Study. This unique opportunity disentangles cohort and grade effects, providing reliable estimates of learning gains over a year. Examining contextual variables— socioeconomic, curricular, and pedagogical—the TIMSS and PIRLS International Study Center will delve deeper into how educational practices are connected to student growth. The longitudinal option, conducted a year after the main data collection of TIMSS 2023, is currently in progress. Additional data collection started in some countries as early as March 2024 to ensure the interval between measurements reflects progress over a year. The TIMSS 2023 Longitudinal Study provides opportunities to contextualize trends and groups across all cycles of TIMSS data. For example, score differences that indicate that two groups differ by some amount can be compared against the average growth of students expected over a year. Furthermore, the longitudinal study results can provide a deeper understanding of group differences and how they may develop and widen over time.
The TIMSS 2027 Assessing Mathematics and Science Achievements in a Digital World.
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