An index of utility can be distinguished from both an index of reliability and an index of validity in that an index of utility can tell us something about
A) how consistently a test measures what it measures in a particular context.
B) whether a test measures what it purports to measure in a particular context.
C) the practical value of the information derived from what a test measures.
D) None of these

Question

Quizplus · Accepted Answer

An index of utility refers to the practical value of the information derived from a test. It tells us how useful or valuable the information gained from the test is for a particular purpose or context. This is different from an index of reliability, which tells us how consistently a test measures what it measures, and an index of validity, which tells us whether a test measures what it purports to measure.

An Index of Utility Can Be Distinguished from Both an Index