challenged Jean Piaget's theory of child development by demonstrating that infants as young as 2 1/2 months of age display object permanence.

Renée Baillargeon challenged Jean Piaget's theory of child development by demonstrating that infants as young as 2 1/2 months of age display object permanence.

Explanation:

Piaget suggested that the object permanence is attained by around 9 months, when they search for hidden objects while researcher Renée Baillargeon used visual tasks to demonstrate that infants as young as 2 1/2 months of age are capable of displaying object permanence and suggested that Piaget was wrong.

Renée Baillargeon showed babies much younger than Piaget said start forming object permanence suggesting that this ability might be innate.

question mark?

answer; the above statement is (true);