As Dr. Logan sets out to carefully examine the effectiveness of his new treatment for schizophrenia, he must design his study in a way that controls for the potential effects of __________.

Question

Quizplus · Accepted Answer

Dr. Logan must control for all three potential effects in his study. Spontaneous improvement refers to the natural recovery that may occur without any intervention; placebo effect refers to the changes that may occur due to an individual's belief in the treatment's effectiveness; and preexisting differences between patients in the control and treatment groups may affect the outcome of the study, so they need to be accounted for in the study design.

As Dr Logan Sets Out to Carefully Examine the Effectiveness of of His