If a person's true score is 110 on a test with a standard error of measurement of 3.7 and a mean of 100, we would expect 95% of the person's test scores to fall within
A) 102.75 - 117.25
B) 92.75 - 107.25
C) 90.75 - 120.25
D) 100-110

Question

Quizplus · Accepted Answer

We can use the formula: true score ± (1.96 x standard error of measurement)
110 ± (1.96 x 3.7) = 102.75 to 117.25
Thus, we would expect 95% of the person's test scores to fall within the range of 102.75 to 117.25.

If a Person's True Score Is 110 on a Test