To achieve partial control in ex post facto research, the researcher can
A) conduct a pilot study to determine a common cause.
B) match subjects on as many extraneous variables as possible.
C) randomly assign subjects to experimental and control groups.
D) b and c

Question

Quizplus · Accepted Answer

Matching subjects on extraneous variables helps to control for those variables that could potentially affect the outcome of the study. This is a practical approach for achieving partial control in ex post facto research as the researcher cannot manipulate the independent variable. Conducting a pilot study may be helpful but does not necessarily guarantee control. Randomly assigning subjects to experimental and control groups is not applicable in ex post facto research since the groups are already formed by the independent variable. Thus, the best choice is option B as it provides a practical solution to achieve partial control in ex post facto research.

To Achieve Partial Control in Ex Post Facto Research, the Researcher