Evidence Base

Research & Evidence Behind Our Approach

FX Foundation's work is grounded in decades of peer-reviewed science, longitudinal research, and global policy evidence. These are the studies and institutions that inform everything we do.

Why the evidence base matters

We do not ask donors, partners, or institutions to take our word for it. Every claim we make about the power of early childhood development is backed by independent peer-reviewed research from the world's leading universities, intergovernmental bodies, and longitudinal studies spanning decades. The references below are the scientific foundation on which FX Foundation is built.

8Key studies & reports
50+Years of research cited
7–13%Annual ROI on ECD investment
01
Brain Development Health
National Scientific Council on the Developing Child · Harvard University
Connecting the Brain to the Rest of the Body: Early Childhood Development and Lifelong Health Are Deeply Intertwined

This working paper presents compelling evidence that the foundations for lifelong physical and mental health are established prenatally and during the first years of life. The research shows how developing biological systems interact with environmental contexts — and how early adversity can lead to chronic illness in adulthood.

"The foundations of lifelong health are also built early, with increasing evidence of the importance of the prenatal period and first few years after birth."
Read the working paper Published June 2020
02
Economics Policy
James Heckman · Nobel Laureate in Economics, University of Chicago
The Heckman Curve: The Rate of Return to Early Childhood Education

Nobel Prize-winning economist James Heckman's landmark research demonstrates that investments in early childhood generate the highest rate of return of any public expenditure — 7 to 13% per year, compounding over a lifetime. The Heckman Curve shows that the earlier the investment, the greater the return — with diminishing returns as children age into schooling and adulthood.

7–13%Annual ROI per child
"The most efficient way to grow our economy and reduce inequality is to invest in quality early childhood development for disadvantaged children from birth to five."
Read the Heckman Curve Research ongoing since 1970s · Updated 2019
03
Longitudinal Study Economics
HighScope Educational Research Foundation
The Perry Preschool Project: A Longitudinal Study of the Effects of Early Childhood Education

One of the most cited long-term impact studies in education research. Beginning in 1962, the Perry Preschool Project followed 123 children from low-income families for over 40 years — comparing those who received high-quality preschool with those who did not. The findings are definitive: early childhood education produces lifelong benefits in educational attainment, employment, earnings, and reduced criminal involvement.

40+Years tracked
$13Return per $1 invested
Read the study Commenced 1962 · Follow-up ongoing
04
Africa Focus Policy Economics
World Bank Group
Early Childhood Development: The Promise, the Problem, and the Path Forward

The World Bank's authoritative report on global early childhood development makes the case for ECD investment as both a moral imperative and an economic necessity for developing nations. Particularly relevant for Africa-focused programming, the report outlines the systemic barriers that prevent low-income children from accessing quality early learning — and the policy levers available to governments and international organisations.

"Investing in early childhood is one of the smartest things a country can do to promote prosperity and break the cycle of poverty."
Read the report World Bank Publication
05
Policy Child Readiness
UNICEF
School Readiness: A Conceptual Framework

UNICEF's foundational framework for understanding school readiness as a three-part ecosystem — the ready child, the ready school, and the ready family. This framework directly underpins our approach: readiness is not only about what a child knows, but about how the environment around them is structured to support learning. Our materials address all three dimensions.

"School readiness encompasses the child, the school, and the family — all three must be ready for learning to succeed."
Read the framework UNICEF Publication
06
Policy Systems
Organisation for Economic Co-operation and Development (OECD)
Starting Strong: Early Childhood Education and Care

The OECD's flagship policy series on early childhood education and care synthesises evidence from across member and observer countries on what works in early learning. The series provides policy-level evidence for play-based, child-centred learning approaches — directly validating the Montessori-inspired methodology at the core of FX Foundation's material design.

Read the series OECD Publication Series · Ongoing
07
Annual Data Longitudinal
National Institute for Early Education Research (NIEER)
State of Preschool: Annual Reports on Preschool Effectiveness

NIEER's annual State of Preschool reports are the most comprehensive ongoing dataset on preschool program quality, access, and outcomes available. Published annually, these reports provide the data-backed benchmarks we use to assess and calibrate our program outcomes — ensuring our materials and methodology are held to globally comparable standards of early childhood effectiveness.

View annual reports Annual publication · 2002–present
08
Brain Development Africa Focus GDP Impact
The Lancet · International Scientific Commission
Advancing Early Childhood Development: From Science to Scale

Published in The Lancet — one of the world's most prestigious medical journals — this landmark commission report links early childhood development directly to GDP outcomes, adult productivity, and societal health at a global scale. The report estimates that 250 million children in low- and middle-income countries are at risk of not reaching their developmental potential, and presents an evidence-based roadmap for intervention at scale. This is the high-authority research that gives urgency and scale to our work in Africa.

250MChildren at developmental risk
26%GDP loss linked to poor early development
"The science of early childhood development — from neuroscience to economics — converges on a single truth: investing in the early years is the highest-return investment a society can make."
Read the Lancet series Published October 2016 · The Lancet