Which of the following would be most helpful to estimate the amount of error in an individual's test score?
A) Coefficient alpha
B) KR 20
C) Coefficient of stability
D) Standard error of measurement

Question

Quizplus · Accepted Answer

The standard error of measurement provides an estimate of the amount of error in an individual's test score. This is a more precise measure of the error associated with a specific test score than coefficients such as alpha or KR 20, which are typically used to measure the internal consistency of a test. The coefficient of stability measures the consistency of test scores over time, which is not directly related to estimating error in an individual test score.

Which of the Following Would Be Most Helpful to Estimate