Exhibit 10-8: Choose the term that is described in each of the phrases below.
-Refer to Exhibit 10-8.All subjects have IQ scores in the average range (90-110).
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

Homogeneous selection refers to the process of selecting subjects who have similar characteristics, such as IQ scores falling in a narrow range. This can reduce the variability in the sample and increase the precision of the results. Random assignment (A) refers to the process of assigning subjects to different groups by chance, while randomized matching (B) refers to the process of matching subjects in different groups based on certain variables. Analysis of covariance (D) is a statistical technique used to adjust for variables that may affect the outcome, and using subjects as their own controls (E) refers to comparing a subject's performance on a task or intervention to their own baseline performance. None of these options describe the use of homogeneous selection.

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