Jana takes a breathalyzer test and cannot believe the amount of alcohol that is reportedly in her system. If the officer assures her that the measure is accurate, then she knows:
A) she should take it again, because it may not be valid.
B) she should take it again, because it may not be reliable.
C) she does not need to take it again, because it must also be reliable.
D) she should explain to the officer that this measure is neither reliable nor valid.

Question

Quizplus · Accepted Answer

If the officer assures her that the measure is accurate, it implies that the test is measuring what it is supposed to measure (validity). Since reliability is about consistency, and accuracy implies correct results, a valid measure must also be reliable in this context.

Jana Takes a Breathalyzer Test and Cannot Believe the Amount