A World of Differences: The Science of Human Variation

One reason why it is important for early childhood colleagues to be able to individualize is because of significant human variation. This paper calls for a significant shift in how we design, implement, and evaluate policies and programs. It explains how expecting individual variation in effectiveness, and planning for flexible implementation, avoids false stereotypes based on income or race and is likely to achieve larger impacts for all children and thus generate greater returns on investment for society. A 4-page brief summarizing the paper is also available here.