If an experimenter conducts a t test for dependent means with 10 participants and the estimated population variance of difference scores is 20,the variance of the comparison distribution is
A)20 / 10 = 2.0
B)20 / 9 = 2.2
C)400 / 10 = 40.0
D)400 / 9 = 44.4

Question

Quizplus · Accepted Answer

The variance of the comparison distribution is calculated by dividing the estimated population variance of difference scores by the number of participants.

If an Experimenter Conducts a T Test for Dependent Means