Mary hides Ramy's favorite toy under a blanket while Ramy watches. Ramy removes the blanket and squeals when he sees the toy. Mary again hides the toy, but this time under a different blanket. Even though Ramy saw where Mary hid his toy, he still looks under the first blanket before removing the second blanket and retrieving the toy. Ramy has displayed _____.

Question

Quizplus · Accepted Answer

Ramy has displayed the A-not-B error, which is a common mistake made by infants during the sensorimotor stage of cognitive development. This error occurs when a child searches for an object where it was last found (location A), rather than its new location (location B), even after observing it being moved.

Mary Hides Ramy's Favorite Toy Under a Blanket While Ramy