The difference between the T score and the t ratio is that
A) the T score always results in a higher value than does the t ratio
B) the T score refers to several sample means, whereas the t ratio only refers to two sample means
C) the T score is used as a measure of individual performance, whereas the t ratio evaluates the possibility of a performance difference between two
Independent groups
D) none of these, since T and t are the same

Question

Quizplus · Accepted Answer

The T score is typically used in psychological testing and represents an individual's performance relative to a norm group, often standardized to have a mean of 50 and a standard deviation of 10. The t ratio (or t-statistic) is used in hypothesis testing to determine if there is a significant difference between the means of two independent groups.

The Difference Between the T Score and the T Ratio