Reliability coefficients are expressed:
A) between +.5 and -.5
B) between + 1 and 0
C) between -1 and 0.
D) between -1 and +1.

Question

Quizplus · Accepted Answer

Reliability coefficients range from -1 to +1, with a value of 0 indicating no reliability at all. Since negative reliability makes no sense, the range of reliability coefficients is usually expressed as between 0 and +1. However, some measures may produce values outside of this range due to statistical anomalies. Therefore, the range of reliability coefficients is between 0 and +1, with a value of 1 indicating perfect reliability. Option D is the one that best fits this explanation as it indicates a range between 0 and +1.

Reliability Coefficients Are Expressed