The Organization for Economic Co-operation and Development (OECD) released the Programme for International Student Assessment (PISA) 2025 results, confirming a sharp, sustained decline in academic performance across 23 nations. The data is stark: average mathematics scores for 15-year-olds have plummeted from 501 in 2006 to 469 in 2025. Reading scores followed a similar trajectory, dropping from 495 to 466, while science scores slid from 503 to 486. This isn't a one-off dip; it's a structural erosion in foundational learning capabilities that has accelerated post-pandemic.
The report isolates digital screen time as a primary variable in this downward trend. Students who limited device use to one hour or less daily recorded the highest average science score of 507. But the numbers get ugly as screen time increases. Those using devices for more than two hours averaged 482, a significant drop. However, the correlation becomes severe for heavy users. Students reporting five to seven hours of daily screen time scored an average of just 434 in science. Even students who reported no device use scored 499, suggesting that moderate or zero exposure outperforms heavy consumption.
The OECD emphasizes that while the data shows a strong association, it does not prove direct causation. The decline is broad-based, affecting all major subjects rather than isolating a single area of weakness. This suggests a systemic issue in how students engage with learning in a digital-first environment. The sharp drop since 2020 indicates that the pandemic may have entrenched habits that are now hindering cognitive development and academic retention. The consistent drop across math, reading, and science points to a widening gap in critical thinking and analytical skills among the global student population.
Education ministers and policy makers in the 23 participating countries will now face pressure to reassess digital integration strategies in schools. The next step involves national-level analysis to determine if specific curricula or assessment methods are failing to keep pace with technological changes. Expect a wave of policy reviews focusing on screen-time limits in classroom settings and homework assignments in the coming months.