The definition "An object is 'spherical' if and only if it rolls freely in any direction when placed on a flat surface" is an example of:
A) A definition by genus and difference.
B) An operational definition.
C) A lexical definition.
D) A definition by subclass.
E) A stipulative definition.

Question

Quizplus · Accepted Answer

The definition is an operational definition because it defines "spherical" in terms of a specific operation or test that can be performed to determine whether an object meets the definition. Specifically, if an object can roll freely in any direction when placed on a flat surface, it is considered spherical.

The Definition "An Object Is 'Spherical' If and Only If