Card 70 / 104: A T-score is different from a z-score. A z-score is the same as the standard deviation. A T-score, however, has a mean of 50 with every 10 points landing at a standard deviation above or below the mean. Thus a T-score of 60 would equal +1 SD while a Tscore of 40 would
A) be –2 SD
B) be –1 SD
C) be a z-score of +2.
D) be a z-score of +1.

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