If a calculator actually subtracted numbers when you pushed the addition button,you would question the ____ of the addition button because it doesn't do what it is supposed to do.
A) deviation score
B) correlation
C) validity
D) reliability

Question

Quizplus · Accepted Answer

Validity refers to the extent to which a measure or tool accurately measures what it is intended to measure. In this case, the addition button is intended to add numbers, but if it is subtracting numbers instead, its validity is being questioned.

If a Calculator Actually Subtracted Numbers When You Pushed the Addition