Reliability of a test can be increased by
A) decreasing inter-item correlations
B) decreasing number of test items
C) increasing number of test items
D) both a and c

Question

Quizplus · Accepted Answer

Increasing the number of test items has been shown to increase reliability, while decreasing the number of items or decreasing inter-item correlations can actually decrease reliability. Therefore, the best choice is to increase the number of test items (option C).

Reliability of a Test Can Be Increased by