Ordinary correlational estimates of the score reliability of criterion-referenced tests may be quite low because
A) it is difficult to find suitable criteria.
B) the scores have little variability.
C) the tests are typically speeded.
D) the content is too heterogeneous.

Question

Quizplus · Accepted Answer

Correlation coefficients indicate the relationship between two variables. When the variability of one variable is low, it severely limits the range of values that can be correlated with the other variable, which leads to lower correlation coefficients. In this case, criterion-referenced tests have scores with little variability, which can lead to low estimates of score reliability.

Ordinary Correlational Estimates of the Score Reliability of Criterion-Referenced Tests