IEA’s TIMSS 2019 is the seventh assessment cycle of TIMSS, the Trends in International Mathematics and Science Study. TIMSS 2019 was conducted at the fourth and eighth grades in 64 countries and 8 benchmarking systems. Inaugurated in 1995, TIMSS has been conducted every four years since, providing 24 years of trends in mathematics and science achievement.

+ Read More

International Results in Mathematics and Science

Students with Teacher studying

The TIMSS 2019 International Results in Mathematics and Science presents results from the latest cycle of TIMSS, presenting fourth and eighth grade mathematics and science achievement and contextual data for 64 countries and 8 benchmarking systems.

+ View the Highlights and the Full Report
Play video of international achievement Play video of home, school and classroom contexts

PSI Banner

Findings from the Problem Solving and Inquiry (PSI) Tasks

The TIMSS 2019 PSI tasks were developed to gain insights into how using digitally-based interactive assessment items and ways to capture students’ responses could be incorporated into TIMSS.

+ Visit the Findings
Play video of the PSI Results

Assessments Frameworks Banner

Assessment Frameworks

The TIMSS 2019 Assessment Frameworks provides the foundation for the four international assessments that comprise IEA's TIMSS 2019.

+ Visit the Publication

Encyclopedia Banner


TIMSS 2019 Encyclopedia: Education Policy and Curriculum in Mathematics and Science describes the structure and mathematics and science curricula of education systems around the world.
+ Visit the Publication

Methods and Procedures Banner

Methods and Procedures

Methods and Procedures: TIMSS 2019 Technical Report describes in detail the methods and procedures used to develop, implement, and report the results of TIMSS 2019.
+ Visit the Publication

PSI Banner

TIMSS 2019 Environmental Awareness Results

Learn what the TIMSS 2019 science assessment tells us about students’ understanding of the environment.

+ See the Results
Play video of the PSI Results

International Database

The TIMSS 2019 International Database and User Guide is an excellent resource for experts and emerging researchers to conduct their own secondary analyses with TIMSS data.
+ Visit the Publication

Contextual Questionnaires

TIMSS 2019 collected information about contexts for learning mathematics and science with questionnaires completed by students and their parents, teachers, and school principals.
+ See the Questionnaires