Which of the following is the LEAST important characteristic of a good control group? A) its members experience everything the experimental group experiences except the treatment B) it has the same number of participants as the experimental group C) it is equivalent to the experimental group in all important characteristics D) it is measured on the same dependent variable as the experimental group

Question

Quizplus · Accepted Answer

The size of the control group (having the same number of participants as the experimental group) is generally less important than ensuring the control group experiences everything the experimental group does except for the treatment (A), is equivalent to the experimental group in all important characteristics (C), and is measured on the same dependent variables as the experimental group (D). These factors directly impact the validity of the experiment, while the exact size of the control group, as long as it is statistically significant, is a lesser concern.

Which of the Following Is the LEAST Important Characteristic of a Good