Ruby received a score of 90 on an intelligence test. Two days later she received a score of 55 on a different form of the same test. The test was apparently lacking in ________.
A) validity
B) reliability
C) culture-fairness
D) content-relations

Question

Quizplus · Accepted Answer

Reliability refers to the consistency of a measure. A test is considered reliable if it produces similar results under consistent conditions. Ruby's significantly different scores on two forms of the same test suggest that the test is not producing consistent results, indicating a lack of reliability.

Ruby Received a Score of 90 on an Intelligence Test