In which situation below would you use a t test for dependent means?
A)To compare the level of honesty (based on an honesty scale)in politicians to the level of honesty in students.
B)To compare the level of reading comprehension of students at the beginning of a speed-reading class to their level of reading comprehension at the end of the class.
C)To find the correlation between liking for coffee and tendency to be a "night person" among a group of students.
D)To compare the scores on a tolerance-of-diversity measure between two sororities.

Question

Quizplus · Accepted Answer

A t test for dependent means, also known as a paired-samples t test, is used to compare the means of two related groups, where each participant is in both groups (such as pre-test and post-test scores of the same group). In option B, we are comparing the reading comprehension scores of students before and after a speed-reading class, which is a situation where a t test for dependent means would be appropriate. In contrast, options A, C, and D do not involve related groups, so a t test for dependent means would not be appropriate.

In Which Situation Below Would You Use a T Test