20 Years of TIMSS: International Trends in Mathematics and Science Achievement, Curriculum, and Instruction



On May 31, 2017 AIR hosted a presentation and discussion on a recently released report using data from the Trends in International Mathematics and Science Study (TIMSS) titled 20 Years of TIMSS. Since its first administration in 1995, TIMSS has become a prominent assessment of students’ knowledge, skills, and abilities in Mathematics and Science. Not only does TIMSS measure student achievement in mathematics and science, it also is designed to report on curriculum and instruction, as well as student background variables. TIMSS’ most recent administration in 2015 marks 20 years of this assessment being operationalized, which allows researchers and policy makers to gain a sense of changes in student achievement, curriculum and instruction, and student background variables over the last 20 years.

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