If you want to examine the difference between the average scores for students on a pretest/posttest measure,which statistical technique should you select?
A)regression
B)dependent-samples t-test
C)analysis of variance
D)independent-samples t-test

Question

Quizplus · Accepted Answer

The dependent-samples t-test is used to compare the means of two related groups (i.e. pretest and posttest scores from the same group of students). It is the appropriate statistical technique to use when examining the difference between average scores on a pretest/posttest measure.

If You Want to Examine the Difference Between the Average