Question 1
To test the hypothesis that infants often fail object permanence tasks because their motor development is immature, Renée Baillargeon and colleagues designed the _____ method.
◦ confirmation of expectations
◦ violation of expectation
◦ test of primary reflexes
◦ assessment of motor skills
Question 2
Typical first words include ____.
◦ "mama" and "dada"
◦ "go-go" and "stop-stop"
◦ "train" and "house"
◦ "sissy" and "bubby"