Identify the Variable of Interest in the Study

question 79

Multiple Choice

Identify the variable of interest in the study.
-A clinic gives a drug to a group of ten patients and a placebo to another group of ten patients to find out if the
Drug has an effect on the patients' illness.

• A)Whether the drug has an effect on the patients' illness
• B)The group of 10 patients
• C)Whether the placebo effects the patients' illness

---

Definitions:

Lymphocytes

A type of white blood cell that plays a central role in the immune response.

Immune System

The body's defense network against pathogens, consisting of organs, tissues, cells, and proteins that identify and eliminate infections.

Stress Hormones

Chemical substances produced by the body in response to stress, such as cortisol and adrenaline, that regulate various bodily functions.

Placenta

During pregnancy, this essential organ arises in the uterus, where it facilitates the transfer of oxygen and nutrients to the fetus and manages the expulsion of its waste.