Robert knows how to say "red," but when his cousin asks him to name the colors of the cars that drive past their house,he says red for the red cars,the blue cars,the green cars,and the black cars.Robert's use of this word illustrates
A) fast mapping.
B) telegraphic speech.
C) babbling.
D) overextension.

Question

Quizplus · Accepted Answer

Robert's use of "red" to describe cars that are not actually red demonstrates overextension, which is a common language error in which a child applies a word too broadly to include objects that are not typical or appropriate members of the category represented by the word.

Robert Knows How to Say "Red," but When His Cousin