Answer:
Stimulation
Step-by-step explanation:
Developmental psychology
This is referred to as a section of psychology that is responsible for identifying and explaining continuities and changes that humans during their lifetime.
Child Development
This is simply known as the study of the every changing, cumulative, and growth changes in the physical, cognitive, and social-emotional development of children and adolescents.
The essential qualities of developmental changes includes;
1. Persistent
2. Cumulative
3. Progressive
Developmentally Sensitive or Critical Periods
This is concern with the period or time when a child is especially responsive and able to learn a particular skill. It is essential for children to have a good learning environment during these sensitive and critical moments.