The most effective control subjects in a test of an experimental treatment are
A) a different age or gender than the experimental subjects.
B) given different doses of the experimental treatment.
C) kept well informed of what treatment they are getting.
D) treated the same as experimental subjects but not given the experimental treatment.

Question

Quizplus · Accepted Answer

The most effective control subjects are those who are treated the same as experimental subjects but not given the experimental treatment. This is because they provide a baseline for comparison with the experimental group, allowing the researchers to determine whether any observed effects are due to the treatment or simply to chance. Option A is not necessarily true as age and gender are often important factors in medical research. Option B may lead to confounding variables that could affect the results. Option C is not necessarily relevant as keeping control subjects well-informed may not affect the outcomes of the study.

The Most Effective Control Subjects in a Test of an Experimental