According to Jean Piaget's theory of cognitive development, when a child fails to fit new information into their existing schema and consequently modifies their old schema or creates a new schema, this mental process is called which of the following?

In Jean Piaget's theory of cognitive development, 'Accommodation' is the process in which a child modifies their pre-existing schema or creates new mental structures to incorporate new information or experiences, because the old information is not sufficient to understand the new situation. In contrast, in 'Assimilation', the child incorporates new information into the existing schema without any changes.