When a test has been shown to be measuring what it purports to measure, then we may assume that the test is
A) reliable
B) valid
C) containing only homogeneous items
D) containing only heterogeneous items

Question

Quizplus · Accepted Answer

Validity refers to the extent to which a test measures what it was designed to measure. Therefore, if a test is shown to be measuring what it purports to measure, it is considered valid. Reliability, on the other hand, refers to the consistency of test scores over time or across different raters, and is not directly related to whether the test measures what it is supposed to measure. The options C and D refer to item homogeneity, which is not necessarily related to the validity or reliability of the test.

When a Test Has Been Shown to Be Measuring What