A new psychological test has a reliability of zero. This means that

Question

Quizplus · Accepted Answer

Reliability refers to the consistency of a test's scores over time. A reliability coefficient of zero means that scores fluctuate randomly from one time to another, indicating a lack of consistency or stability in the test's measurements. As a result, it is impossible to use the scores on this test to make accurate predictions of any behavior outside the test, and scores are unlikely to be normally distributed. While it is possible for individuals to score worse the second time they take the test compared to the first time, this is not necessarily true for everyone and is not the defining characteristic of a test with a reliability of zero.

A New Psychological Test Has a Reliability of Zero