In a Multiple Regression Model, If the Residuals Have a Constant

question 126

Multiple Choice

In a multiple regression model, if the residuals have a constant variance, which of the following should be evident?

• A) The residual mean should be close to 0, and the residual standard deviation should be close to 1.0.
• B) The plot of residuals against each independent variable should show that the spread in the residuals is about the same at all levels of the independent variables.
• C) The residuals should have a variance equal to 0 for all levels of the independent variable.

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Definitions:

Obsessive-Compulsive Disorder

A mental health disorder characterized by recurrent, unwanted thoughts (obsessions) and/or repetitive behaviors (compulsions).

Thalamus

A brain structure that relays sensory messages to the cerebral cortex.

Amygdala

A brain structure involved in the arousal and regulation of emotion and the initial emotional response to sensory information.

Prefrontal Cortex

A part of the frontal lobes of the brain, involved in decision making, problem-solving, control of purposeful behaviors, consciousness, and emotions.