Can Intensive Early Childhood Intervention Programs Eliminate Income-Based Cognitive and Achievement Gaps?
研究利用婴儿健康与发展项目数据，发现为期两年的早期教育干预对低收入家庭儿童影响更大，可消除3岁时基于收入的认知差距，并缩小5岁和8岁时差距的三分之一至四分之三。
How much of the income-based gaps in cognitive ability and academic achievement could be closed by a two-year, center-based early childhood education intervention? Data from the Infant Health and Development Program (IHDP), which randomly assigned treatment to low-birth-weight children from both higher- and low-income families between ages one and three, shows much larger impacts among low-than higher-income children. Projecting IHDP impacts to the U.S. population's IQ and achievement trajectories suggests that such a program offered to low-income children would essentially eliminate the income-based gap at age three and between a third and three-quarters of the age five and age eight gaps.