„Evidence from TIMSS and PIRLS (at around age 10) and PISA (at age 15) indicates that in all OECD countries, test scores are higher for children from high socio-economic backgrounds than for their disadvantaged peers. In addition, these performance gaps have increased in a majority of countries over the last decade.“
OECD (Hrsg.), Starting Strong. Reducing Inequalities by Investing in Early Childhood Education and Care (2025), S. 28.
Auch in Österreich sind die sozioökonomisch bedingten Leistungsdifferenzen sowohl bei den 10-Jährigen als auch bei den 15-Jährigen größer geworden. (Quelle: OECD (Hrsg.), Reducing Inequalities by Investing in Early Childhood Education and Care (2025), Table 1.2.)