A test designed to measure achievement motivation proved to be very consistent but to have no relation to other measures of motivation or teachers' ratings of motivation.The test is
A) valid and reliable.
B) reliable but not valid.
C) valid but not reliable.
D) neither valid nor reliable.

Question

Quizplus · Accepted Answer

The test is reliable because it consistently measures the same thing, but it is not valid because it does not measure what it is intended to measure. The lack of relationship with other measures of motivation and teachers' ratings also indicate that the test does not have good construct validity.

A Test Designed to Measure Achievement Motivation Proved to Be