MacKenzie is an 18-month-old girl.Her family has a white poodle for a pet,and MacKenzie has learned that the poodle is a puppy.She refuses to call any other dog "puppy." In what is MacKenzie engaging?

Question

Quizplus · Accepted Answer

MacKenzie is exhibiting underextension by only calling the white poodle a "puppy" and refusing to use the label for any other type of dog. This is an example of a child's limited use of language to describe a specific object or concept, rather than a syntactical error, holophrasing, or overextension.

MacKenzie Is an 18-Month-Old Girl