A test is said to have good validity if there is good evidence that
A) all the test items are measuring the same thing.
B) it has been used previously by many different researchers.
C) test scores are relatively stable over time.
D) the test measures what it was designed to measure.

Question

Quizplus · Accepted Answer

Good validity means the test measures what it was designed to measure, so option D is the correct answer. Option A is referring to internal consistency, not validity. Option B is not relevant to the concept of validity. Option C is referring to test-retest reliability, which is also not the same as validity.

A Test Is Said to Have Good Validity If There