The prelinguistic phase in infancy ends when the child
a. utters her first meaningful words.
b. succeeds in toilet-training.
c. walks without assistance.
d. first shows signs, however indirectly, of using grammar.
Question 2
In their study, Courage, Edeson, and Howe (2004) combined the microgenetic and cross-sectional approaches to investigate
a. cross-cultural child-rearing practices.
b. play behavior in toddlers.
c. mother-child interactions.
d. the development of visual self-recognition in infants.