The development order scale is also a norm, which is mainly used to evaluate the development level of children, including the development of language, thinking, perception and sports. It is one of the most widely used tools to evaluate children's development. The development order scale can help educators and medical professionals better understand children's development level and provide them with corresponding educational support and medical care services, so the development order scale belongs to the development norm.

Norm is a commonly used measurement tool, and it is a typical model or model used to evaluate and compare the performance of individuals or groups in different measurement dimensions.