W When is an operational definition needed?
A) When you measure the length of a desk
B) When you decide what is meant by a "broken egg"
C) When you weigh a balloon before and after blowing it up
D) When you calculate the period of a pendulum
E) All of the above
F) None of the above

Question

Quizplus · Accepted Answer

An operational definition is needed when you need to clearly define a concept or variable in terms of specific, observable, and measurable criteria. In this case, defining what is meant by a "broken egg" requires an operational definition to ensure consistency and clarity in measurement or observation.

W When Is an Operational Definition Needed