The PISA 2025 data confirms that a student’s family background remains one of the strongest predictors of academic performance in Malaysia. Socio-economically advantaged 15-year-olds—the top 25% by family wealth, parental education, and home resources—outscored their disadvantaged peers (the bottom 25%) by 82 points in science,  according to the OECD’s latest PISA 2025 data for Malaysia.

What this means in real-world terms is a cause for severe concern. Under standard OECD PISA methodology, 20 score points roughly correspond to one year of formal schooling.

Consequently, an 82-point disparity represents approximately four years of education. This indicates that 15-year-old Malaysian students in the socio-economically disadvantaged bottom 25% lag four full schooling years behind their peers in the top 25%.

This is a gap Malaysia cannot afford to ignore. It illustrates the “inverse care law of education”—or the social determinants of learning—where children who require the greatest support, resources, and high-quality instruction are the least likely to receive them.

The data further reveals that nearly two-thirds (63%) of Malaysia’s most disadvantaged students failed to achieve baseline science proficiency (Level 2) in 2025. One point of hope, however, is that 10% of these disadvantaged students managed to score in the top quarter of overall science performance, demonstrating remarkable academic resilience despite their socio-economic circumstances.

While socio-economic performance gaps exist across many OECD nations (where the average difference between extreme quarters stands at 85 points), Malaysia’s trend remains alarming. These are children who are being systematically left behind.

A comparison of Malaysia’s PISA trajectories reveals that while the gap narrowed modestly between 2018 and 2022, it has widened again in 2025, returning nearly to its 2018 level.

This points to an education system where opportunity remains uneven: students from lower-income households face structural barriers accessing the learning environments, resources, and institutional support necessary to achieve strong academic outcomes.

Policy recommendations

1. Move away from relying solely on national composite averages, which obscure underlying disparities. Publish and track disaggregated PISA scores and learning outcome metrics segmented by socio-economic status.

2.  While all students require support, fiscal and educational resources must be disproportionately allocated to students furthest behind and to schools serving lower-income communities. School funding models should be weighted based on the proportion of disadvantaged enrolled students.

3.  Set clear and measurable targets to narrow the achievement gap between advantaged and disadvantaged cohorts. Rather than focusing exclusively on point scores, benchmark progress against PISA’s baseline proficiency threshold (Level 2)—the minimum skill level recognised by the OECD as necessary for full participation in modern society and further learning.

Without concerted policy intervention, Malaysia risks institutionalising a two-tier educational system. Denying generations of children the opportunity to reach baseline proficiency produces an adult population facing constrained economic opportunities, reduced earning capacity, and limited civic participation—factors that will ultimately diminish workforce productivity, stifle social mobility, and drag down broader societal development.

(Dato’ Dr Amar-Singh HSS is Consultant Pediatrician and Child-Disability Activist.)