Report published September 23, 2026

The Learning Power of PISA: Deutsche Bank on Global Education Trends and AI's Role

Deutsche Bank · September 23, 2026

The latest OECD PISA study shows a sharp decline in 15-year-old student performance across developed economies, with maths and reading scores falling by 27 and 31 points respectively since 2015. While smartphone distraction and pandemic disruption have contributed to this decline, evidence suggests AI can support educational outcomes when utilized as a tutoring tool rather than as a substitute for drafting and summarization.

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Key Takeaways

1.OECD PISA test results show 15-year-old students across developed economies perform at levels equivalent to students up to 1.5 years younger a decade ago.
2.Since 2015, average OECD maths scores have declined by 27 points, reading scores by 31 points (with 20 points roughly equaling one year of learning), and science scores by 11 points.
3.AI is most effective when used as an active learning tutor rather than a passive drafting or summarising substitute.

Report data

Figure 1: Trends in performance over time for 15yr olds in science, reading and mathematics (PISA test scores, OECD-23 average)

Metric	Estimate	Context
OECD Average Mathematics PISA Score Change	-27.0 points	Average OECD maths scores drop since 2015
OECD Average Reading PISA Score Change	-31.0 points	Average OECD reading scores drop since 2015
OECD Average Science PISA Score Change	-11.0 points	Average OECD science scores drop since 2015
Equivalent Learning Duration per PISA Points	20.0 points per year	The OECD benchmark equating PISA test points to years of learning