the scientific study of human development is defined as the study of:
Developmental psychology, also referred to as human development, is the scientific and methodical study of systematic psychological changes that take place in human beings over the course of their life span. At first, the study of developmental psychology was only concerned with infants and children. But today, the field has grown to comprise of adolescence, adult development, aging, and the entire life span of an individual.
Sociology is the scientific or academic study of social behavior, including its origins, development, organization, and institutions. It is a social science that uses various methods of empirical investigation and critical analysis to develop a body of knowledge about social order, social disorder and social change.ociologists' approach to culture can be divided into a sociology of culture and cultural sociology—the terms are similar, though not entirely interchangeable. The sociology of culture is an older term, and considers some topics and objects as more-or-less cultural than others.