Trey's older sister is playing a game with him. She hides the ball they are playing with behind her back, and Trey quickly loses interest in the game. He makes no attempt to look for the ball, and instead picks up another toy that is close by. This suggests that Trey has not yet developed

Question

Quizplus · Accepted Answer

Trey's lack of interest in looking for the ball behind his sister's back implies that he does not yet understand object permanence - the concept that objects continue to exist even when they are out of sight. This is a key milestone in cognitive development that typically emerges around 8-12 months of age. The other options are less relevant to Trey's behavior in this specific situation.

Trey's Older Sister Is Playing a Game with Him