Answer:
A. Developmental norms
Explanation:
The progress of a child's development is measured by a standard called developmental norms. Every child maturing at a normal rate should reach certain milestones (learning how to walk and talk, reaching puberty, etc) at the approximately same age. A child incapable of performing a task it should already be able to complete on its own may be a cause for concern.
All individuals show certain abilities at an average age called: A. developmental norms.
Cognitive development can be defined as the development of thought processes, learning skills, knowledge and problem-solving abilities in living organisms such as humans, especially from infancy through adulthood.
Jean Piaget's stages of cognitive development in an ascending order are;
In conclusion, developmental norms refers to the average age at which an individual displays certain abilities.
Read more on cognitive development here: https://brainly.com/question/8893006
