The OECD’s PISA 2022 tested nearly 700 000 15-year-old students in 81 OECD member and partner economies on mathematics, reading and science. The study, with its main focus on maths, was also the first to collect data on student performance, well-being and equity before and during the COVID-19 pandemic.

Overall, on average, the PISA 2022 assessment saw an unprecedented drop in performance across the OECD. Compared to 2018, mean performance fell by 10 score points in reading and by almost 15 score points in maths, equivalent to three-quarters of a year's worth of learning.