An Interaction Term in a Multiple Regression Model May Be

question 138

Multiple Choice

An interaction term in a multiple regression model may be used when

• A) the coefficient of determination is small.
• B) there is a curvilinear relationship between the dependent and independent variables.
• C) neither one of 2 independent variables contribute significantly to the regression model.
• D) the relationship between X₁ and Y changes for differing values of X₂.

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Definitions:

Arteriosclerosis

A general term describing the thickening and hardening of arterial walls that can restrict blood flow.

Renal Failure

A medical condition where the kidneys lose their ability to filter waste products from the blood, leading to accumulation of toxins.

Hypertension

A chronic medical condition in which the blood pressure in the arteries is persistently elevated.

Atrial Natriuretic Hormone

A hormone secreted by the heart's atria that regulates fluid and electrolyte homeostasis.