Microgenetic design is a method of scientific examination in developmental psychology

Developmental psychology

Developmental psychology, also known as human development, is the scientific study of systematic psychological changes, emotional changes, and perception changes that occur in human beings over the course of their life span. Originally concerned with infants and children, the field has expanded to...

 in which the same children are studied repeatedly over a short period of time. In contrast to cross-sectional and longitudinal designs which provide broad outlines of the process of change, microgenetic designs provide an in-depth at children's behavior while it is changing.