Exhibit 10-8: Choose the term that is described in each of the phrases below.
-Refer to Exhibit 10-8.Removes the part of each subject's posttest score that is in common with his/her pretest score.
A) random assignment
B) randomized matching
C) homogeneous selection
D) analysis of covariance
E) use of subjects as their own controls

Question

Quizplus · Accepted Answer

Analysis of covariance (ANCOVA) is the statistical technique used to remove the part of each subject's posttest score that is in common with his/her pretest score. This is done to increase the sensitivity of the study to detect differences between groups, as preexisting differences between participants can affect the posttest scores.

Exhibit 10-8: Choose the Term That Is Described in Each