Before a measurement scale can be shown to be valid,it must be _______.
A)stable
B)reliable
C)consistent
D)convergent

Question

Quizplus · Accepted Answer

A measurement scale must first be reliable before it can be shown to be valid. Reliability refers to the consistency of scores obtained from a particular instrument or measurement method. Once reliability is established, validity, which refers to the accuracy of the measurement or how well it measures what it claims to measure, can then be determined. Stability, consistency, and convergent validity are all important aspects of validity, but reliability must be established first.

Before a Measurement Scale Can Be Shown to Be Valid,it