Which of the following factors is likely to increase the reliability of a test or of a questionnaire?
A)distractions in the testing situation
B)variability on the factor being tested among those individuals being tested
C)ambiguous instructions for completing the test
D)fewer items on a test

Question

Quizplus · Accepted Answer

Variability on the factor being tested among individuals can help in distinguishing between different levels of the trait or ability being measured, thus increasing the reliability of the test.

Which of the Following Factors Is Likely to Increase the Reliability