The Explained Variance (R²)of a Model Can Decrease If a Mediating

question 18

True/False

The explained variance (R²)of a model can decrease if a mediating variable is included in the model.

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Definitions:

Sensory Input

Information that the brain receives via the senses, including sight, sound, smell, taste, and touch, which is then processed to guide responses and actions.

Blood Vessels

Tubular structures in the body through which blood flows, including arteries, veins, and capillaries.

Depth of Respirations

Refers to the degree of chest or abdominal expansion during breathing, indicating the volume of air inhaled or exhaled.

Cyanosis

A blue or purplish discoloration of the skin and mucous membranes due to deficient oxygenation of the blood.