See the below image for the Developmental psychology diagram. Developmental Psychology Definition. Developmental psychology is the study of how people grow, change, and remain the same throughout their lifespan. In the past, developmental psychology was primarily used to understand the mental, emotional, and cognitive growth of children.
Early Childhood The period from infancy through early childhood is a time of remarkable growth and change. Developmental psychologists look at things such as the physical, cognitive, and emotional growth that takes place during this critical period of development.
One way that developmental psychology optimizes development and learning is through developmental psychology theories. There are many theories in developmental psychology, and sometimes they are contradictory. Research is ongoing to determine the best methods for understanding and exploring development.