Believing that her grandmother is hearing-impaired, sharon typically speaks very slowly and loudly to her. actually, her grandmother can hear quite well, but she naturally matches her speaking rhythms to sharon's, which leads sharon to speak even more slowly and loudly, and the spiral continues. an exaggerated response to a perceived need, such as sharon's response to her grandmother, is called:

Over accommodation

Explanation:

Over accommodation is a process of adaptation that is given by Jean Piaget. It is altering the schema of a person regarding any objects or things. The schema has been changed by getting new information. The new information leads to change into a new schema about an object. This process does not only occur with the children but it also occurs with adults as well. When you are trying to introduce new information but conflicting with old schema then the person tries to accommodate the information that is inside the mind and confirm that information with the information outside in the world.