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The Trends in International Mathematics and Science Study (TIMSS) provides reliable and timely data on the mathematics and science achievement of U.S. students compared to that of students in other countries. TIMSS data have been collected from students at grade 4 and 8 since 1995 every 4 years, generally. In addition, TIMSS data have been collected twice from students at grade 12 (in 1995 and 2008), which can be referred to as TIMSS Advanced. The next TIMSS data collection is in 2015 and will include students in grades 4, 8 and 12. Further information on TIMSS 2015 is provided here.

In the most recent administration of TIMSS (2011), more than 60 countries and other education systems, including the United States, participated in TIMSS at grade 4 and 8. More than 20,000 students in more than 1,000 schools across the United States took the assessment in spring 2011, joining almost 500,000 other students around the world who also took part in TIMSS.

Examples of all TIMSS assessment questions can be found here and TIMSS questionnaires can be downloaded from here. For other information or questions, see the Frequently Asked Questions (FAQs) here or you can use the “Contact Us" button at the top of the page.

The TIMSS International Data Explorer (IDE) is available for users to create their own tables and charts, and perform statistical tests with data from all years of TIMSS. The TIMSS IDE is modeled after the NAEP Data Explorer and functions the same way. The TIMSS IDE can be accessed here.

More information about TIMSS and related resources, including the TIMSS International reports, TIMSS assessment frameworks, and international data files, are available at the TIMSS International site.

International Data Explorer You can explore the TIMSS data directly through NCES's online data tool — the International Data Explorer (IDE)

Download TIMSS data in ready-made tables at the Table Library

Explore Your KnowledgeTest your mathematics and science knowledge by completing TIMSS items in the Dare to Compare challenge!

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Data Snapshot

TIMSS (International) 2011 Assessment<br />


U.S. AVG. :  509<br />
TIMSS Scale AVG. :  500
TIMSS (International) 2011 Assessment

U.S. AVG. : 509
TIMSS Scale AVG. : 500

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National Center for Education Statistics -
U.S. Department of Education