Pisa scores reveal a direct relationship between socioeconomic status and school performance worldwide. On average across assessed countries and economies, the most advantaged students score 74 points higher in Science than the poorest ones, a difference equivalent to about three and a half years of schooling. The same pattern appears in Reading, with a gap of 67 points, and in Mathematics, of 71 points.
The report from the Organization for Economic Cooperation and Development (OECD) on the 2025 Pisa results classifies socioeconomic status as one of the most powerful and consistent predictors of academic performance in the world.
In Brazil, the situation is even more pronounced. The difference between the richest and the poorest students reaches 96 points in Science, surpassing the global average. Pisa divides students into four socioeconomic groups to make these comparisons.
The survey also shows that 48% of Brazilian students use artificial intelligence for schoolwork, indicating a shift in learning methods in the country.
