Question 1
Nine-month-old Carter's mother turned her head suddenly as the dog approached from behind. Carter was watching his mother's face and turned in the same direction. Carter and his mother are showing __________.
◦ simple imitation
◦ joint attention
◦ the language acquisition device
◦ home sign
Question 2
Nine-month-old Elizabeth's mother speaks to her a great deal throughout the day, even though Elizabeth cannot yet speak intelligible words herself. Studies have shown that until infants have started to produce words on their own, spoken words __________.
◦ do not help in categorization
◦ are ignored
◦ help infants to group items within categories
◦ confuse infants