Answer :
Answer:
A not B error
Explanation:
A not B error is also called as preservative error. It is quite evident in case of infants up-to 1 year of age. This happens because when child sees anything it tries to remember it and even the same situation changes and it sees also but even then focus on previous memory.
Hence even though niece saw where the object was hidden next time, niece still relied on its previous memory and searches at first place.