Release of PIRLS 2021 International Report Postponed to 2023

Thanks to the heroic efforts of countries in ensuring data collection during disruptions to schooling, PIRLS 2021 was the only international large-scale assessment administered during the pandemic and has yielded high-quality data that will be instrumental for studying the effects of COVID-19 on education.

Nevertheless, due to the significantly reduced time for data analysis and complexities in reporting within the COVID-19 context, IEA, the TIMSS & PIRLS International Study Center at Boston College, and participating countries have jointly decided to postpone the international release of PIRLS 2021 results from the original release date of 13 December 2022 to the first half of 2023.

This additional time will allow the International Study Center at Boston College to conduct the necessary analyses that will ensure an integrated report containing both paper and digital international results and data are released together in 2023.

We look forward to releasing insights from this unique study next year and more information about the new release date of PIRLS 2021 will be provided soon.

Edit: IEA and the TIMSS & PIRLS International Study Center at Boston College can confirm that the release of the PIRLS 2021 International Report and Results will take place on Tuesday, 16 May 2023 at 10:00 CEST


Recognized as the global standard for assessing trends in reading achievement at the fourth grade, PIRLS provides international comparisons of fourth grade students’ reading literacy achievement and associated factors. The study is directed by TIMSS and PIRLS International Study Center at Boston College and conducted every five years. PIRLS 2021 marks 20 years of trends in reading achievement since the study was first administered in 2001.