Why Do Researchers Use Theories in Quantitative Research

question 1

Multiple Choice

Why do researchers use theories in quantitative research?

• A) They prove which variables influence an outcome
• B) They eliminate confounding variables
• C) They indicate the probable relationships among variables
• D) They indicate the study's overall purpose

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Definitions:

Pulmonary Circuit

The route of blood flow from the heart to the lungs and back, during which blood becomes oxygen-rich.

Peripheral Resistance

The resistance of the arteries to blood flow. As the arteries constrict, the resistance increases and blood pressure rises.

Cardiac Output

The volume of blood the heart pumps through the circulatory system in one minute, a crucial parameter for determining heart efficiency.

Oxygen Level

The concentration of oxygen in a particular environment or medium, typically referring to its amount in the blood.