The difference between reliability and validity is that reliability is ___ and validity is ___.
A) the degree to which a test score correlates with some external criterion; the degree to which a test score reflects an individual's true abilities
B) the extent that scores predict future scores; the accuracy of these scores
C) how well scores correlate with future measures; the extent that scores on one test correlate with scores on a similar test
D) the consistency in test scores over time; the extent to which a test measures what it says it measures

Question

Quizplus · Accepted Answer

Reliability refers to the consistency in test scores over time, meaning that if someone were to take the same test multiple times, they should receive relatively similar scores. Validity, on the other hand, refers to the extent to which a test measures what it says it measures. This means that a valid test should accurately assess an individual's abilities in the area it is meant to measure.

The Difference Between Reliability and Validity Is That Reliability Is