If the mean of the raw score distribution equals 120 with a standard deviation of 5, then a raw score of 130 would have a T score of
A) 55
B) 60
C) 70
D) 30

Question

Quizplus · Accepted Answer

The formula to convert a raw score to a T score is T = 50 + 10(Z score). To find the Z score, we need to first calculate the deviation from the mean, which is (130-120) = 10. Then we divide this deviation by the standard deviation, which gives us a Z score of 2. Finally, to find the T score, we plug the Z score into the formula: T = 50 + 10(2) = 70. Therefore, choice C is the correct answer.

If the Mean of the Raw Score Distribution Equals 120