A psychologist asks people to envision a circle. Next he asks them to draw the circle they envisioned. When comparing the pictures, almost all circles look identical. The fact that a circle typically fits a specific and rigid set of rules is an example of a __________.
A) formal concept
B) natural concept
C) fuzzy concept
D) prototype

Question

Quizplus · Accepted Answer

This is an example of a formal concept, as circles have a specific and rigid set of rules defining their shape. Natural concepts are less rigidly defined and based on real-world experiences, while fuzzy concepts lack clear boundaries. A prototype is a typical or ideal example of a concept, but does not necessarily relate to the rigid set of rules defining a circle.

A Psychologist Asks People to Envision a Circle