The means for both Test A and Test B are 50. A 50% confidence interval for a score at the mean is 44-55 for Test A and 42-58 for Test B. Which of the following statements is true?
A) ?Test A is more reliable than Test B.
B) ?Test B is more reliable than Test A.
C) ?Test A has a larger SEM than Test B.
D) ?Test B has a larger SEM than Test A.
D
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