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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

PIRLS 2021 International Results in Reading
VISIT REPORT
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

Forthcoming

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

Aspects of Student Well-Being and Reading Achievement in PIRLS 2021 is now available
READ MORE
Release of the PIRLS 2021 International Database
READ MORE
PIRLS 2021 International Results in Reading is now available
READ MORE

Upcoming Dates

Mar–Jun 2024
TIMSS 2023 Longitudinal Study Data Collection
Jun 2024
PIRLS 2026 Assessment Frameworks published
Nov 2024
TIMSS 2023 Encyclopedia published
Dec 4, 2024
Release of TIMSS 2023 International Results in Mathematics and Science

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

© 2024 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.