Regarding the true score, which statement is correct?
A) we can never know the true score with certainty
B) we can derive a probability that the true score resides within a certain interval
C) we can derive a best estimate of the true score
D) all of the above

Question

Quizplus · Accepted Answer

The true score is a theoretical concept in measurement theory that represents the actual level of the trait or ability being measured, without the error inherent in the measurement process. We can never know the true score with certainty (A) because all measurements have some degree of error. However, statistical methods allow us to estimate the true score (C) and to calculate the probability that the true score falls within a certain range (B), making all of the statements correct.

Regarding the True Score, Which Statement Is Correct