An Interaction Term in a Multiple Regression Model May Be

question 50

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:

Central Vein

Terminal branches of the hepatic veins that lie centrally in the hepatic lobules and receive blood from the liver sinusoids.

Sinusoids

Specialized, capillary-like vessels that are larger and more permeable, found in certain organs like the liver, spleen, and bone marrow, facilitating blood flow and exchange of nutrients.

Liver

A large vital organ in vertebrates responsible for detoxification, protein synthesis, and biochemical production necessary for digestion and metabolism.

Goblet Cells

Specialized epithelial cells found in the respiratory and intestinal tracts, secreting mucus to lubricate and protect the mucous membranes.