A Control Variable Is a Variable Included in a Regression

question 4

Multiple Choice

A control variable is a variable included in a regression equation whose purpose is to:

• A) alleviate an endogeneity problem.
• B) improve the fit of the model.
• C) provide a placebo test.
• D) ensure the sample is representative.

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Definitions:

Yerkes-Dodson Law

The Yerkes-Dodson Law is a psychological principle stating that there is an optimal level of arousal for optimal performance; too little or too much arousal can lead to decreased performance.

Aroused People

Individuals experiencing heightened physiological and psychological activity, which can influence cognition and behavior.

Emotional Intelligence

Emotional Intelligence is the ability to recognize, understand, and manage one's own emotions, as well as to recognize, understand, and influence the emotions of others.

Paul Ekman

A psychologist renowned for his research on the universality of facial expressions and the identification of emotions.