In addition to the following questions about PIRLS, more FAQs about international assessments are available at: http://nces.ed.gov/surveys/international/faqs.asp.
The table below lists the total number of education systems that have participated in each of the three administrations of PIRLS at grade 4. This number includes both countries and subnational entities, such as Canadian provinces, U.S. states, England, and Hong Kong. For more information on participating education systems, visit the PIRLS Country Page.
|Year||Education systems participating|
in PIRLS at grade 4