In this section we are going to introduce what child psychology is. Child psychology is also referred to as child development. It is the study of the psychological processes of children and, specifically, how these processes differ from those of adults, how they develop from birth to the end of adolescence, and how and why they differ from one child to the next. Child psychology represents an approach to understanding children through a description and an explanation of the psychological changes which children undergo in the course of time. For example as children grow older they form attachments to people, acquire language and learn to behave in ways that are rewarding. They become able to regulate their own behavior.