What is the main focus of developmental psychology?

Developmental psychology primarily investigates how and why human beings change throughout their lives. This field examines growth and development in various aspects, including cognitive, emotional, social, and physical changes from infancy through old age. It seeks to understand the various factors that influence these changes, such as genetics, environment, culture, and individual experiences, offering insight into human behavior and personality development at different life stages.

By focusing on the trajectory of change over time, developmental psychology provides a comprehensive view of human growth, including critical developmental milestones, the impact of life events, and the ways in which individuals adapt and evolve. This perspective is essential for understanding not only typical development but also challenges that may arise, making it a fundamental area of study within the broader field of psychology.