Infants use hand gestures and facial expressions to communicate

Infants use hand gestures and facial expressions to communicate with others by the average age of
a.   two weeks.
b.   two months.
c.   five months.
d.   nine months.


Preverbal infants’ understanding of words they hear is
a.   much greater than most parents believe.
b.   at the same average level as parents’ estimates.
c.   lower than parents believe because infants interpret nonverbal cues such as parents’ gestures.
d.   suppressed due to confusion from the naming explosion.


Adults’ exaggerated verbal utterances mixed with expressive actions such as gestures are known as
a.   expressive transformational grammars.
b.   multimodal motherese.
c.   sensorimotor multimediators.
d.   attentionated referents.