Whenever jane has a backache, she uses a different mattress to relieve the pain. her backache usually goes away after the change. today, jane has serious pain in her knee. she believes that by using the mattress she uses for her backache, she will be able to alleviate her knee pain. in the context of piaget's theory of cognitive development, jane is using the process in developing her schemas?

In the context of Piaget's theory of cognitive development, Jane is using the ASSIMILATION PROCESS in developing her schema. 
Piaget's theory of cognitive development focuses on brain development. The theory divides the stage of development into four based on age range. The theory holds that there are two process at work in cognitive development, these are assimilation and accommodation. Assimilation occur when one modify new information to fit into his schema, while accommodation occur when we restructure what we already know so that new information can fit in better.