Solomon's mother hides his sippy cup by first placing it under a blanket and then putting it under a nearby pillow, in Solomon's full view. Solomon responds by looking for the sippy cup under the blanket. This is an example of

Question

Quizplus · Accepted Answer

The A-not-B error refers to a child's tendency to search for an object in a location where it has been previously found (location A), even though the child sees it being hidden in a new location (location B). In this scenario, Solomon's mother hides his sippy cup in a new location (under a pillow), but Solomon still looks for it in the old location (under the blanket).

Solomon's Mother Hides His Sippy Cup by First Placing It