Renée Baillargeon (1987) Habituated 3

Multiple Choice

Renée Baillargeon (1987) habituated 3.5- and 4.5-month-old infants to a screen that rotated in a 180 degree arc. She then placed a wooden box directly in the path of the screen, and rotated the screen either until it made contact with the box (a possible event) or until it passed through the box (an impossible event) . On the basis of what evidence did Baillargeon conclude that 4.5-month-olds possessed some notion of object permanence?

A) The infants moved their heads extensively as if in visual search for the box in the impossible condition.
B) The infants crawled to search for the box in the impossible condition.
C) The infants looked longer at the impossible event.
D) There were no differences in the looking times between the two conditions for the older infants, whereas the younger infants looked longer at the possible event than the impossible event.