Longitudinal studies of children with peer problems suggest that

Noam Chomsky thought humans have a unique, inborn ability to understand language.  Chomsky called this the

Conflicts between friends differ from those between nonfriends in that conflicts among friends are

Investigations of parent-infant interaction suggest that

Evidence suggests that males are more likely than females to use computers for school and play and are also more likely to enroll in computer courses. This is MOST likely to mean

The Strange Situation is used to assess

Hitting other children

Which of these is evidence that siblings can be “viral vectors?”

Which illustrates parallel play?

Babies’ early word acquisition is very rapid, but once they achieve a spoken vocabulary of 50 words the rate at which they acquire new words slows down.