What must you ensure when selecting participants for the control group and experimental group in an experiment?
A) That they all share common characteristics
B) That they are all unaware of the purpose of the research
C) You choose a range of different types of people
D) You must not choose too many people

Question

Quizplus · Accepted Answer

To ensure the validity of an experiment, participants in both the control and experimental groups should share common characteristics to minimize variability and isolate the effect of the independent variable.

What Must You Ensure When Selecting Participants for the Control