In a study of the effects of an anti-inflammatory drug on chronic jaw pain, one group receives an inactive substance in the form of a pill. This group
Receives
A) the independent variable.
B) the dependent variable.
C) a control.
D) a placebo.

Question

Quizplus · Accepted Answer

This group receives a placebo, which is an inactive substance given to compare the effects of the actual drug on another group. It helps to determine if the drug's effects are due to the treatment itself or other factors.

In a Study of the Effects of an Anti-Inflammatory Drug