Dr Sesay Is Testing a New Antidepressant

Multiple Choice

Dr. Sesay is testing a new antidepressant. He carefully screens his subjects and assigns them to either the control group or the experimental group. He gives one group the new medication and gives the other group sugar pills that look exactly the same as the real medication. By doing this, he is hoping to control for __________ effects.

A) correlational
B) placebo
C) scatterplot
D) meta-analytical