A student's test performance is sometimes indicated by a confidence interval rather than by a single score. The rationale behind this practice is that:
A)The computation of a single score is not possible for some tests.
B)A single test score is almost always subject to error.
C)Some tests have extremely vague scoring criteria.
D)Tests typically have low reliability.

Question

Quizplus · Accepted Answer

A single test score is almost always subject to error, and a confidence interval provides a range that is likely to contain the true score, accounting for measurement error.

A Student's Test Performance Is Sometimes Indicated by a Confidence