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Data to Improve Education Worldwide

TIMSS and PIRLS are international assessments that monitor trends in student achievement in mathematics, science, and reading.

Currently more than 70 countries participate in the assessments, which have been conducted at regular intervals since 1995.

TIMSS
PIRLS
Databases

Results

Findings from the TIMSS 2019 Problem Solving and Inquiry Tasks
VISIT REPORT
turtle and jellyfish swimming viewed from under the surface of the water
TIMSS 2019 Environmental Awareness Results
VISIT REPORT
TIMSS 2019 International Results
VISIT REPORT

Forthcoming

PIRLS 2021
PIRLS 2021 International Results to be released on May 16, 2023
TIMSS 2023
TIMSS 2023 completes the transition to a fully digital
assessment and includes new and interactive item types.
View the TIMSS 2023 Brochure
PIRLS 2026
PIRLS 2026 completes the transition to a fully digital
assessment, concluding a transition that began with
PIRLS 2021.
View the PIRLS 2026 Brochure

Latest News

Illustration of a world globe and an open book with arrows flowing between them
The PIRLS 2021 Encyclopedia: Education Policy and Curriculum in Reading is now available
READ MORE
Photo of two middle-school-age children collecting plastic trash in a grassy area
Publication of the TIMSS 2023 Environmental Attitudes and Behaviors Framework
READ MORE
Establishing a concordance between PASEC and ERC with TIMSS/PIRLS. Logotype of Boston College.
IEA’s Rosetta Stone: Measuring Global Progress towards the UN Sustainable Development Goal 4
READ MORE

Upcoming Dates

Mar–Jun 2023
TIMSS 2023 Data Collection (Northern Hemisphere)
May 16 2023
Release of PIRLS 2021 International Results
Jun 22 2023
PIRLS 2021 International Database released
Sep–Dec 2023
TIMSS 2023 Data Collection (Southern Hemisphere)
@TIMSSANDPIRLS TWEETS

TIMSS & PIRLS International Study Center
188 Beacon St., Chestnut Hill, MA 02467, USA
Tel +1-617-552-1600
Fax +1-617-552-1203

© 2023 TIMSS & PIRLS International Study Center, Lynch School of Education and Human Development, Boston College, and International Association for the Evaluation of Educational Achievement. All rights reserved.