When a test actually measures what it is supposed to measure,the test has _______.
A)reliability
B)discriminative power
C)statistical power
D)validity

Question

Quizplus · Accepted Answer

Validity refers to how accurately a test measures what it is supposed to measure, so when a test measures what it is supposed to measure, it has validity. Reliability refers to the consistency and stability of a test's results, discriminative power refers to the ability of a test to distinguish between different levels or degrees of a trait or ability, and statistical power refers to the likelihood of a test detecting a true effect if it exists. While these are important aspects of testing, they do not directly relate to whether a test measures what it is supposed to measure.

When a Test Actually Measures What It Is Supposed to Measure,the