Sometimes in a drug study, the experimental group given the actual drug and the control group given the inactive substance both initially show improvement.This is due to
A) the Barnum effect.
B) the placebo effect.
C) a biased sample.
D) a random assignment of subjects.

Question

Quizplus · Accepted Answer

The placebo effect occurs when people show improvement not because of the actual treatment they received, but rather because they believe they are receiving an effective treatment. In a drug study, both the experimental and control groups may see improvement initially because participants in both groups may believe they are receiving the actual drug due to the placebo effect.

Sometimes in a Drug Study, the Experimental Group Given the Actual