What Type of Research Study Is Considered to Be the Most

question 32

Multiple Choice

What type of research study is considered to be the most reliable source of evidence?

• A) A randomized controlled trial
• B) A qualitative, descriptive study
• C) A clinical informatics research study
• D) A case review in a medical journal

---

Definitions:

Cross-sectional Area

The area of a particular section of an object or substance, usually measured perpendicular to a specific axis.

Capillaries

The smallest blood vessels in the body which facilitate the exchange of water, oxygen, carbon dioxide, and many other nutrient and waste chemical substances between blood and the tissues.

Velocity

A physical vector quantity that denotes the rate of change of position of an object with respect to time, including both speed and direction.

Venae Cavae

The two large veins that return deoxygenated blood to the heart; consisting of the superior and inferior vena cava.