This report summarizes research about development during the first 3 years of life. It highlights research in domains that are foundational for later school readiness and success, including:
- perceptual, motor, and physical development
- social and emotional development
- approaches to learning
- language and communication
Programs can use this information as a guide to inform their practices and policies and to help them think about their theories of change and what outcomes they are focused on improving for young children.