Which of the Following Statements Is NOT True About Epidemiological

question 15

Multiple Choice

Which of the following statements is NOT true about epidemiological studies?

• A)Subjects are randomly assigned to an experimental group and a control group.
• B)Such studies can assess interactions between genetic,behavioral,and environmental factors.
• C)Their main purpose is to observe the variables in a population.
• D)The results of the study cannot be used to establish cause and effect.
• E)There is no intervention involved in this type of study.

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Definitions:

Mucus

A thick, slippery substance produced by mucous membranes and glands for protection and lubrication in various body parts, such as the nose, throat, and lungs.

Pulmonary Fibrosis

A lung disease that occurs when lung tissue becomes damaged and scarred, making it difficult for lungs to work properly.

Pleurisy

An inflammation of the pleura, the two layers of membranes surrounding the lungs and lining the chest cavity.

Alveoli

Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place, crucial for breathing.