Which example demonstrates underextension?
A) Abigail refers to any animal with four legs as a "dog."
B) Billy knows the word "ball," but he only calls a football a ball.
C) Maddie knows that cows, sheep, horses, and chickens all live on a farm, but she calls them all "horses."
D) Tyler uses the word "butter" to refer to anything that he puts on bread, including peanut butter, cream cheese, and jelly.

Question

Quizplus · Accepted Answer

Underextension occurs when a child uses a word too narrowly, applying it to fewer objects or situations than is appropriate. In choice B, Billy's use of "ball" exclusively for a football, and not for other types of balls, is an example of underextension.

Which Example Demonstrates Underextension