Abecedarian data (IMAGE) Virginia Tech Caption Newly published data from the Abecedarian Project illustrate the long-term effects of early childhood education intervention on IQ scores, showing sex differences across treated and control groups from ages 5 to 45. Male and female treatment effect sizes showed very different patterns of change over time. Credit Leigh Anne Kelley/Virginia Tech Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.