PISA, or the Programme for International Student Assessment, is a significant international assessment that evaluates the educational performance of 15-year-old students across the globe. Here’s a bit more detail about it:

1. Purpose: PISA measures students’ abilities in three key areas:
   • Reading literacy
   • Mathematics literacy
   • Science literacy
2. Administration: The assessment is conducted by the Organisation for Economic Co-operation and Development (OECD) and is designed to assess how well students can apply their knowledge and skills to real-world problems.
3. Global Reach: PISA tests are administered in 65 countries, allowing for a comprehensive comparison of educational systems worldwide. This includes students from various backgrounds, regardless of their grade level or socio-economic status.
4. Frequency: PISA assessments are conducted every three years, providing valuable data on educational trends and outcomes.
5. Importance: The results help policymakers and educators understand how their education systems are performing and identify areas for improvement.